IPMU ANNUAL REPORT 2009 April 2009—March 2010 K

IPMU IPMU Annual Report ANNUAL REPORT 2009 2009 April 2009 — March 2010

April 2009 — March 2010 Institute for the Physics and Mathematics of Universe (IPMU)

Institute for the Physics and Mathematics of the Universe (IPMU) The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan Tel: +81-4-7136-4940 Fax: +81-4-7136-4941 http://www.ipmu.jp/ IPMU ANNUAL REPORT 2009 April 2009—March 2010 K. Abe (chair), M.Nakahata,K.Nomoto, K.Saito, T. Yanagida Institute forthePhysicsandMathematicsofUniverse 5-1-5 Kashiwanoha,Kashiwa,Chiba277-8583,Japan Tel: +81-4-7136-4940Fax: +81-4-7136-4941 Copyright ©IPMU Annual Report2009 Editorial board members The University of Tokyo Print: KOHMURA Inc. http://www.ipmu.jp/ All rightsreserved 2010 2009 Arl20—March2010) (April 2009— History ofIPMU March February January December November October September August July June May April • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Science Camp “New Encounter of Modern Mathematics and Modern Physics” ScienceCamp“NewEncounterofModernMathematics andModernPhysics” Yoji Totsuka PrizetoTakaaki Kajita ASJYoung Astronomer Award toKeiichiMaeda UTPresident Award toMasaomiTanaka FocusWeek: CondensedMatterPhysicsMeetsHighEnergy Physics Visit ofMEXTVice MinisterMasaharuNakagawa “ScienceCafe-Universe”(3PublicLectures from toMarch) January MoveIntoNewIPMUBuilding SiteVisit byWPIAdministrativeOfficers LaunchofIPMUBerkeleysatellite FocusWeek: EpochofRe-ionization Workshop: RecentAdvancesinMathematicsatIPMU FocusWeek: QCDinConnectionwithBSMStudyatLHC NishinaMemorialPrizetoHirosi Ooguri IPMU-ICRRJointPublicLecture KashiwaCampusOpenHouse,Publiclecture andExhibition FocusWeek: StatisticalFrontier ofAstrophysics Press release “TheMostLuminousType IaSupernova” “SuMIRe”Project Approved bytheCouncilforScienceandTechnology Policy Program toInspire FemaleStudentswithScience SiteVisit byWPIProgram Director andProgram Officers IPMU-ICRRJointPublicLecture Workshop: oflatticesand infinite dimensionalLiealgebra Geometry InaugurationCeremony ofNEWIPMUBuilding Workshop: EllipticFibrationandF-Theory FocusWeek: Indirect DarkMatterSearch Workshop: Quantizations,IntegrableSystemsandRepresentation Theory ofIPMU,AllHands MeetingandReception 2ndAnniversary Yukawa-Tomonaga MemorialPrizetoShigekiSugimoto CommitteeMeeting ExternalAdvisory PublicLecture InternationalConference: DarkEnergy (includingPublicLecture) FocusWeek: NewInvariantsandWall Crossing FocusWeek: Non-GaussianitiesintheSky

3 History of IPMU 1. future. of theoriginuniverse andits view our altering object, unknown by dominated is universe the of 95% than more total, In 1%. than less but 0.1% above somewhere up take neutrinos which matter,of 4.4% ordinary atomsand23%dark of made is universe the that know now We objects. nearby with pull gravitational its observing by only established was existence the that so us, to invisible therefore and light, emit not does matter.It dark called is It atoms. ordinary from different completely something of made is universe the in matter of 80% than more that 2003 by Furthermore, established mass. was finite it but tiny revealedcarry 2002 neutrinos that settle theissuehasbeentakingplaceinEurope andUS,inparticular. to fierce competition and worldwide, scientists among mystery fascinating a been has wrong.It be may Einstein’s theory the that conjectured even some that shocking so been has discovery energydark mysterious this approximatelyThe true, occupiesuniverse. If the expands. of it 73% as universe the energy,of dark out called pops is energywhich increasing.This the is space the ■ Hitoshi Murayama IPMU Director Meanwhile, Japanese experiments Super-Kamiokande in the same year and KamLAND in KamLAND and year same the in Super-Kamiokande experiments Japanese Meanwhile,

Mission ■ Composition oftheuniverse according to the Einstein’sthe to according theory,in energy the Equivalently,ago. years billion 7 about since increase accelerated an toward shifted down slowing been have to appeared which expansion of speed the Instead, expansion. the down slow eventually should pull gravitational the namely upwards, thrown ball a of motion the like behave must expansion however,the phenomena, gravity of part a relativity.Being general of Einstein’s theory by predicted was itself expansion The accelerating. is universe the of expansion of speed the that discovery over thepasttenyears. change revolutionary a through went universe the see we way the dominated that approach this But us. around nature the understand to centuries two past the progressover impressive an for responsible force driving main the The whole thing started with a 1998 a with started thing whole The been has atoms” of made is “Everything

5 Mission 6 Mission energy physicsisalsopursuedatIPMU. baryon low as such phenomena physics particle to theory superstring apply to investigation Systematic superconductivity.as such area the in institutions other of physicists matter condensed with collaboration active initiate IPMU at theorists String physics. in subjects wider a to answers consistent theory,give ultimate should the theory,indeed String problem.if this in closely work physicists and mathematicians IPMU, At theory. the of properties geometrical of investigation considered particles, ofelementary asacandidatefortheultimateunifiedtheory requires further is and theory quantum and relativity general unifies which theory, Superstring mathematics. clue ofdarkmattercandidates,extradimensions,orotherexoticphenomena. any for examined areclosely astrophysical observations and detectors fromcollider Data Model. beta decay, andXMASStodirectly search fordarkmatterinourgalaxy. KamLAND tostudyneutrinogeophysicsbutputtingemphasisonsearch forneutrino-lessdouble explosions, supernova ancient from neutrinos for search on emphasis putting but general in of darkmatter, andmayalsoreveal thetruenature ofdarkenergy. mapping three-dimensional provides This galaxies. distant million 30 than more of observation where weare heading. “predict” to and beginning, very the from universe the of processes evolving the “see” to working are we IPMU, At galaxies. and stars into together evolved then They matter.ordinary pulling eventually and pull, gravitational the by cluster to began matter dark the soon But beginning. the at state structure-less and flat a as ago, years billion 13.7 Big-Bang the from fire-ball hot a as started have Investigation of dark matter and dark energy requires further development of theory and theory of development requiresenergyfurther dark and matter dark of Investigation Standard the beyond physics explore to physics particle in phenomenology study We astronomy neutrino study to Super-Kamiokande detectors, underground three use We allows and telescope Subaru the to attached is that instrument optical an develop We to believed is universe The distribution. ■ Evolution oflarge-scalestructuretheuniverseanddarkmatter 13 12 11 10 9 8 7 6 5 4 3 2 1 Contents Outreach andPublicCommunications Preprints. Publications. Visitors. Conference Talks. Conferences. Seminars. Research Highlight. Research Program Staff. Organization. Introduction. Mission...... 107 97 79 63 51 85 71 69 19 17 13 9 5 2. Galileo’s 1623 work Galileo’s1623 from taken was It mathematics.” of language the in written is universe “The meaning concept, which is to give the place a power to attract scientists and to induce interactions.Standing inthemiddleofPiazzaFujiwaraisanobeliskinscribingancientItalianwords induce to and scientists attract to power a place the give to is which concept, design his explained He building. the designed who Sciences, Frontier of School Graduate the of professor UT Ohno, Hidetoshi was ceremony the in speakers the Among up. and floor 3rd the from building the of center the occupies that space open large a Fujiwara, Piazza at 2010 23rd, February on held was building meter square 6,000 new the of ceremony inauguration government-funded research programs. FortunatelytheeffectonIPMUwasminimal. 400 than more review to Hearing” Unit Revitalization “Government publicized widely a came Then universe. expanding of history the about information unbiased providing thus scale, time years few a within galaxies distant million 30 than more for spectra and distribution the observe to us allow will instrument new energy.The dark and matter dark understand to goal our for boost big a AstronomicalObservatory.was National This with collaboration in telescope Subaru the for camera generation next a build to project year five a Red-shifts)”, and Image of Measurement (Subaru “SuMIRe approved Government the Technologyof and Policy Science for year.productiveCouncil very August, and In exciting yet eventful, an was 2009 JFY The 2010). journals and produced 178 preprints, many of many preprints, 178 produced and journals refereed in papers 100 published We ago. year month) reached 165ascompared with 125one one than (more visitors long-term and students appointments, joint staff, time full investigators, principal including staff scientific of number Totalfellows. postdoctoral 36 and professors, assistant professors,5 associate professors,8 11 traditional Universitypositions.” the sacrificing without faculty IPMU the of part a to tenure give and funding; WPI the of duration the beyond IPMU sustain Institute; such of one as University the into IPMU making progress towards express itsestablishment.I mycommitmenthere we willintegrate that are we and entity, permanent its as Study Advanced for Institute of system interdisciplinary an discussing been actually has University “The stated, ceremony the at speech his in Hamada, Junichi President,Tokyo of University The university. the from support encouraging chosen sothatweremember agreat manwholivedatthedawnofmoderncosmology. was It universe. the of mysteries the solve to together work physicists and mathematicians In January the construction of anxiously waited new IPMU building was completed. An completed. was building IPMU new waited anxiously of construction the January In UNIVERSO ÉSCRITTOINLINGUAMATEMATICA March - 2009 (April 2009 JFY the during IPMU at activities research covers report This We expanded full time scientific staff to staff scientific time full expanded We extremely an but building, new a just not us brought ceremony inauguration The Introduction Il Saggiatore Il and describes precisely the concept of our institute, where institute, our of concept the precisely describes and for thenewIPMUbuilding. Hamada addressingattheinauguration ceremony ■ The UniversityofTokyoPresident Junichi

9 Introduction 10 Introduction ■ We were visitedby432scientists,ofwhich345from abroad. seminars. 140 held and conferences international 11 hosted We supernova. type-Ia luminous most of observation on collaborators and Nomoto Ken’ichi by paper a and theory, superstring in model melting crystal using holes black of states quantum decoding on Yamazaki Masahito and Ooguri Hirosi by paper a is Noteworthy journals. refereed to submitted being are which IPMU researchstaffgatheredfor theallhandsmeetinginOctober. ■ ■ Publications Preprints Visitors (foreign) Seminars Conferences Total Students Long-term Visitors Joint Appointments Postdoctoral Fellows Faculty (notincluding5PIs) Principal Investigators Research ActivitiesatIPMUinJFY2009 Number ofIPMUResearchstaff 432 (345) Number 100 178 140 165 11 30 59 36 19 19 2 Foreign 92 29 22 29 2 6 6 Female 10 0 3 3 3 0 1 ■ Prize Yukawa-Tomonaga ■ explosions. supernova of investigation observational and theoretical on work his for Award President Tokyoof University the awarded was Tanaka Masaomi oscillation. neutrino atmospheric of discovery the for Prize TotsukaYoji first the received Kajita Takaaki explosions. supernova of investigation observational and theoretical on work his for Award YoungAstronomer Japan of Society Astronomical received Maeda Keiichi theory. superstring topological to contribution his on Prize Memorial Nishina received Ooguri Hirosi phenomena. testable to theory superstring of application important an is which physics, hadron understanding for approach QCD holographic on work his for Prize Yukawa-TomonagaMemorial received Sugimoto Shigeki Hirosi OoguriattheNishinaPrizeawardingceremony. Shigeki Sugimoto Several IPMU staff members received honors and awards for their scientific achievements. scientific their awardsfor and received honors members staff IPMU Several UT PresidentAward ■ Masaomi Tanaka Yoji TotsukaPrize ■ Takaaki Kajita Astronomer Award ASJ Young ■ Keiichi Maeda

11 Introduction 12 Introduction ■ ■ New IPMUbuilding The UniversityofTokyoKashiwaCampus of PiazzaFujiwara. ■ Obelisk standinginthemiddle 3. objectives. their of course the on stay Institute the keep to activities research the and priorities scientific on President the advises and Institute the of activities and achievement scientific the annually Directors andfiveamongIPMU’sDeputy nineteenPrincipalInvestigators,allappointedbytheDirector.two of consist members the 2010, March of As strategies. scientific setting and staff the President forconsultationsonbothscientificandadministrativematters. of Office the to access direct has EBM The Institute. the of operation smooth ensure to regularly (EBM) Meeting Board Executive the hold Director.They Administrative and Directors Deputy two by assisted is Director The staff. administrative and staff research other appointing and President, the to Investigators Principal the of recruitment proposing including decisions of range wide a making of authority complete a has Director The President. the to directly The External Advisory Committee (EAC), appointed by the University President, reviews President, University the by appointed (EAC), Committee Advisory External The scientific hiring on Director the to advice gives (SAC) Committee advisory Scientific The ■ ■ reports and Tokyo of University the of President the by appointed is Director IPMU The S. Kahn R. Peccei D. Morrison S. Kojima Y.K. Kim N. Kaifu M. Gonokami J. Ellis T. Yanagida D. Spergel K. Saito H. Ooguri T. Kohno Y. Suzuki H. Aihara The EACmembersasofMarch2010 The SACmembersasofMarch2010

Organization SLAC/Stanford U UCLA; Chair UC SantaBarbara Titech Fermilab/U ofChicago U ofTokyo CERN IPMU Princeton U IPMU Caltech Graduate SchoolforMathematicalSciences,UofTokyo IPMU DeputyDirector IPMU DeputyDirector NAOJ

13 Organization 14 Organization ■ memorandum ofunderstandingwiththefollowinginstitutions. or agreements either signed have We exchanges. educational and research encourage the SACasneeded. Director, the consult by may set who priorities and vision scientific the reflect will appointments proposed the Director’son approvalThe research. their help to IPMU at staff research hire to Director the to proposals make can They conduct. they research the in autonomy large a have Investigators Principal The institutions. other as well as Tokyo) of (U Institution Host the in departments other and IPMU to affiliated are they and moment the at them of nineteen are There Investigators. Principal the as appointed are fields research their in scientists leading National TaiwanUniversity,ResearchCenterforCosmologyandParticleAstrophysics Astronomical ResearchintheSouthernHemisphere) European SouthernObservatory(ESO)(TheOrganizationfor Max PlanckInstitute,PhysicsDepartment Max PlanckInstitute,Extra-terrestrialPhysicsDepartment Max PlanckInstitute,AstronomyandAstrophysicsDepartment Ludwig MaximilianUniversityofMunich,PhysicsDepartment Technical UniversityofMunich,PhysicsDepartment Stanford University,KavliInstituteforParticleAstrophysicsandCosmology(KIPAC) Washington StateUniversity,DepartmentofMathematics University ofWashington,AstronomyDepartment Princeton University,DepartmentofAstrophysicalSciences New MexicoStateUniversity,AstronomyDepartment John’s HopkinsUniversity,DepartmentofPhysicsandAstronomy Institute forAdvancedStudy,SchoolofNaturalSciences University ofChicago,DepartmentAstronomyandAstrophysics University ofCaliforniaBerkeley,PhysicsDepartment Foreign InstitutionswithexchangeprogramIPMU IPMU tries to have close relations with similar research institutions in the world to world the in institutions research similar with relations close have to tries IPMU IPMU hasratheruniqueapproach inorganizing theresearch objectives,where theworld’s more timetoconsidertheInstituteatlarge andfocusonthedirection oftheresearch. This partisheadedbytheAdministrativeDirector. ItsfunctionalsoenablestheDirector tospend IPMU’sthe for mission. importance essential of is Institute the researchersin the to environment as acore,IPMUstaffincludingjuniorresearchers,collaborators,andvisitors. ■ IPMU’s research activities are conducted with a flat organization comprising of principal investigators principal of comprising organization flat a with conducted are activities research IPMU’s The administrative staff is an integral part of the Institute. Providing the best possible best the Providing Institute. the of part integral an is staff administrative The External Advisory Collaborators Committee ■ ■ High EnergyAcceleratorResearchOrganization(KEK) Institut desHautesEtudesScientifiques(IHES) Department ofAstrophysicalSciences,PrincetonUniversity Department ofPhysics,UniversityCaliforniaBerkeley Research CenterforNeutrinoScience,TohokuUniversity Department ofPhysics,KyotoUniversity Yukawa InstituteforTheoreticalPhysics,KyotoUniversity National AstronomicalObservatoryofJapan(NAOJ) Department ofAstronomy Graduate SchoolofMathematicalSciences Institute forCosmicRayResearch Department ofPhysics Collaborating Institutions Host Institution(UniversityofTokyo) IPMU Research Administrative Director Faculty, Postdocs,Students Principal Investigators U TokyoPresident Center Director Executive BoardMeeting Deputy Directors Scientific Advisory IPMU Management Committee Visitors

15 Organization 16 Organization 4. T. Watari, StringTheory N. Yoshida, Astrophysics N. Yasuda, Astronomy T. Yanagida, ParticleTheory M. Vagins, Astroparticle Physics A. Tsuchiya, Mathematics Y. Toda, Mathematics T. Takayanagi, StringTheory F. Takahashi, Particle Theory M. Takada, Cosmology S. Sugimoto,StringTheory J. Silverman,Astronomy K. Sato,Cosmology K. Saito,Mathematics K. Nomoto,Astronomy H. Murayama,ParticleTheory, Cosmology S. Mukohyama,Cosmology A. Mikhailov, MathematicalPhysics K. Martens,Astropharticle Physics K. Maeda,Astronomy S. Kondo,Mathematics K. Hori,StringTheory S. Hellerman,StringTheory P. Frampton,ParticleTheory Faculty Members T. Yanagida, ParticleTheory Y. Suzuki,Astroparticle Physics,NeutrinoPhysics N. Sugiyama,Cosmology D. Spergel, Astrophysics H. Sobel,Astroparticle Physics K. Sato,Cosmology K. Saito,Mathematics H. Ooguri,MathematicalPhysics,StringTheory K. Nomoto,Astronomy M. Nojiri,ParticleTheory M. Nakahata,Astroparticle Physics H. Murayama,ParticleTheory, Cosmology T. Kohno,Mathematics S. Katsanevas,Astroparticle Physics T. Kajita,NeutrinoPhysics K. Inoue,NeutrinoPhysics M. Fukugita,Astrophysics A. Bondal,Mathematics H. Aihara,HighEnergy Physics,Astrophysics Principal Investigators Y. Suzuki,Astroparticle Physics,NeutrinoPhysics H. Aihara,HighEnergy Physics,Astrophysics Deputy Directors H. Murayama,ParticleTheory, Cosmology Director

Staff M. Fukushima(Tokyo ICRR),Astroparticle Physics B. Fujikawa(LBNL),NeitrinoPhysics S. Freedman (LBNL),Neutrino Physics A. Ferrara(S.N.S.Pisa),Astronomy S. Enomoto(UWashington), NeutrinoPhysics M. Endo(UTokyo), StringTheory T. Eguchi(KyotoYITP),FieldTheory Y. Efremenko (UTennessee), NeutrinoPhysics M. Doi(UTokyo), Astronomy P. Decowski(NIKHEF),HighEnergy Physics R. Bousso(UCBerkeley),Cosmology M. Aganagic(UCBerkeley),StringTheory K. Abe(Tokyo ICRR),Astroparticle Physics Joint Appointments S. Mandal(UCBerkeley),ParticleTheory W.L. Klemm (UC Berkeley),ParticleTheory Graduate Students K. Wang, ParticleTheory M. Valdes (JSPSFellow),Astrophysics J.Y. Tang, Cosmology M. Tanaka, Astronomy H. Takami, Astrophysics M. Sudano,ParticleTheory Y. Srivastava,StringTheory J. Shu,ParticleTheory K. Shimizu,(JSPSGrant-in-Aid),Astrophysics K. Shackleton,Mathematics S. Reffert,Mathematics M. Pichot,Mathematics S.C. Park,ParticleTheory D. Orlando,Mathematics T. Nozawa,Astronomy Y.T. Lin,Astrophysics W. Li,StringTheory G. Lambard, Astroparticle Physics T.Y. Lam,Astrophysics D. Krefl, StringTheory A. Kozlov, NeutrinoPhysics I. Kayo,(JSPSFellow)Astrophysics K. Izumi,Cosmology M. Huang,StringTheory A. Getmanenko,Mathematics D.F. Gao,StringTheory S. Galkin,Mathematics J. Evans,ParticleTheory D. Easson,Cosmology W.S. Cho,ParticleTheory C.R. Chen,ParticleTheory A. Bene,Mathematics T. Basak,Mathematics C. Bambi,Cosmology Postdoctoral Fellows

17 Staff 18 Staff L. Uruchurtu,Cambridge(UK) M. Yamaguchi, Tohoku (Japan) M. Bersten,Chile(Chile) A. Vicente, IFIC(Spain) I. Nisoli,Pisa(Italy) S. Blinnikov, ITEP(Russia) Long-term Visitors (more than1month) K. Yoshikawa (UTokyo), Mathematics J. Yokoyama (Tokyo RESCEU),Astrophysics C.W. Walter (DukeU),NeutrinoPhysics E.L. Turner (PrincetonU),Astrophysics N. Tominaga (KonanU),Astrophysics A. Taruya (Tokyo RESCEU),Astrophysics Y. Takeuchi (Tokyo ICRR),NeutrinoPhysics J. Stone(BostonU),HighEnergy Physics NeutrinoPhysics M. Smy(UCIrvine), M. Shiozawa(Tokyo ICRR),NeutrinoPhysics H. Sekiya(Tokyo ICRR),NeutrinoPhysics K. Scholberg (DukeU),NeutrinoPhysics Y. Saito(UTokyo), Mathematics A. Piepke(UAlabama),NeutrinoPhysics S.T. Petkov(SISSA),ParticleTheory Y. Nomura(UCBerkeley),Particle Theory T. Nakaya(KyotoU),HighEnergy Physics K. Nakamura(Tohoku U),NeutrinoPhysics T. Moroi (Tohoku U),ParticleTheory S. Moriyama(Tokyo ICRR),NeutrinoPhysics M. Limongi(INAFRome),Astronomy A. Kusenko(UCLA),ParticleTheory, Astrophysics T. Kubota(OsakaU),StringTheory Y. Koshio(Tokyo ICRR),NeutrinoPhysics E. Komatsu(UTexas), Cosmology M. Koga(Tohoku U),NeutrinoPhysics T. Kobayashi(UTokyo), Mathematics C. Kobayashi(Australia),Astronomy E. Kearns(BostonU),NeutrinoPhysics M. Kawasaki(Tokyo ICRR),Cosmology A. Kato(UTokyo), MathematicalPhysics M. Kashiwara(KyotoU),Mathematics K. Kaneyuki(Tokyo ICRR),NeutrinoPhysics K. Izawa(KyotoYITP),ParticleTheory S. Hosono(UTokyo), MathematicalPhysics G. Horton-Smith(UKansas),NeutrinoPhysics P. Horava(UCBerkeley),StringTheory J. Hisano(Tokyo ICRR),ParticleTheory R. Hirschi(UKeele),Astronomy K. Heeger(Wisconsin),NeutrinoPhysics M. Hazumi(KEK),Astrophysics Y. Hayato(Tokyo ICRR),NeutrinoPhysics K. Hamaguchi(UTokyo), ParticleTheory L. Hall(UCBerkeley),ParticleTheory K. Hagiwara(KEK),ParticleTheory T. O'Donnell,Berkeley(USA) C. Beil,UCSantaBarbara(USA) Z. Kunszt,ETH-Zurich(Switzerland) S. T. Petcov, SISSA(Italy) B. Venkov, SteklovInst(Russia) J. Schmidt,DESY(Germany) C. Weniger, DESY(Germany) X. F. Wang, Tsinghua (China) M. Wolk, Paris 6(France) Y. Nakayama,UCBerkeley(USA) P. Hut,IAS(USA) S. R.Das,Kentucky(USA) C. Schmidt-Colinet,ETH-Zurich(Switzerland) M. Pevzner, Reims(France) Z. Bajnok,HungarianAcad.Sci.(Hungary) E. Mendez-Escobar, Edinburgh (UK) R. Janik,Jagiellonian(Poland) D. Hernandez-Diaz,Madrid(Spain) P. F. deMedeiros, Edinburgh (UK) B. Webber, Cambridge(UK) M. Verbitsky, ITEP(Russia) C. S.Kim,Yonsei (Korea) B. Michel,Harvard (USA) N. Watanabe Facilities M. Nishikawa*,S.Higashi,Kanazawa, Y. Shimizu Kamioka Satellite K. Abe Documentation H. Tanaka, A.Tsuboi Computer andNetwork K. Kubota Library N. Abe*,H.Ezawa,S.Utsumi Contract andPurchasing Y. Kato*,T. Yamanaka Finance PlanningandBudgetControl M. Nishikawa,R.Ujita, K. Nakamura, M. Ozawa*,H.Furuya,Kuboshima, International Relations Y. Ootaka,N.Ishida,Kubo, H.Yoshida andTravelSalary Expenses T. Shiga,R.Tamura, R.Tamura M. Miura,F. Miyazoe, M. Minami*,K.Oomoto,Y. Enomoto, K.Kawajiri, General ManagementandPersonnel Chief A.Ito Head S.Sugimura Director K.Nakamura Administrative Division(*sectionhead) 5. Alternative GravityTheories ■ can change Einstein's theory atlongdistancestoaddresscan changeEinstein'stheory ofdarkenergy. themystery we if wonder we mind, in this With Einstein's. to theory gravity,Newton's fromchange to was explanation correct the and real not was planet dark the know, all we Mercury.However,as of behavior anomalous the explain to planet, dark so-to-speak a Vulcan, called planet invisible an of existence the hypothesized people some discovered, was Mercury of shift perihelion the when century: 19th the in story a of remindsus situation This reallyis. it what know not do we pressure, negative invisible, with filled is universe energy. energy, energy dark This named is our but of 70% than more that requires this correct, is theory Einstein's If accelerating. is universe our of expansion the that revealed recently data observational Precision distances. short at as evidence ofextra-dimensionsinhigh-energy experimentsorcosmologicalobservations. indirect some detect to hope may directly,we extra-dimensions see cannot we Although space. higher-dimensional in floating brane, called surface, 3-dimensional a be to supposed is universe our scenario this In scenario. brane-world the called is actively very investigated recently possibility One us. from hidden somehow are they but universe, our in everywhere exist may dimensions Extra dimensions. extra such of existence the requireM-theory, and theories superstring including theories, many fact, In distances. short at dimensions hidden be may there example For expect. we what from differently completely behave may gravity distances, shorter At mm. ~0.01 than shorter distances at behaves gravity how know not do we Experimentally, phenomena. gravitational however, many predicting and explaining in successful very been has picture This spacetime. curved of fabric a as gravity describes and spacetime a as time 1-dimensional a and space 3-dimensional Jun'ichi Yokoyama Atsushi Taruya Naoshi Sugiyama Seong ChanPark Shinji Mukohyama Damien Easson Cosimo Bambi Member Alternative GravityTheoriesGroup Gravity at very long distances (for example, billions of light-years) may also be as weird as be also may light-years) of billions example, (for distances long very at Gravity Einstein's theory of relativity unifies a unifies relativity of theory Einstein's

Research Program Model buildingand constraintsondarkenergy. large-scale structuredata. Modeling andtestingstructureformation scenarioinmodifiedtheoriesofgravityfrom Testing alternativegravitytheories usingobservationaldata. Study ofvariousapproaches. Brane worldscenariosandtheHiggs phaseofgravity. gravitational modelsusingobservationaldataandtheoreticalconsiderations. Alternatives todarkenergyexplaintheaccelerationofUniverse. Constraining or blackholephysics. its predictionsarestillreliableinothercontexts,suchasthedescription oftheuniverse essentially onlyintheperturbativeandweakfieldlimit.Thechallenge istofigureoutif General Relativityisourcurrentandsuccessfultheoryofgravity,but ithasbeentested Main Interest Credit: CreativeCommonsAttribution-ShareAlike2.0Germany

19 Research Program 20 Research Program ■ Collider Phenomenology cosmic rayphysics. matter/ dark and physics collider between exciting physics.We alsoseektheconnection these investigate to tools theoretical the preparing now are group the in Researchers extra dimensionsorotherunexpectedexotics. supersymmetry,energy low like physics new probe to breaking, symmetry electroweak investigate systematically to us enables machine This scale. TeV the at physics exploring in opportunities great have we 2009, in turn-on LHC the With Collider(LHC). Hadron Large CERN the especially colliders, the at Model Standard the beyond and Model Standard the of physics testing in research of range broad a pursue members Tsutomu Yanagida Kai Wang Jing Shu Seong ChanPark Mihoko Nojiri Hitoshi Murayama Sourav Mandal William Klemm Junji Hisano Koichi Hamaguchi Motoi Endo Won SangCho Chuan-Ren Chen Member Collider PhenomenologyGroup IPMU collider phenomenology group phenomenology collider IPMU experiments ofcosmicrays. gauge mediationandpossibleexplanations ontheanomaliesobservedinPAMELA Finding theoriesbeyondtheStandard Model.Theoriesforstronglyinteracting Search forBSMandtestofSMat theLHC. Physics oftop,Z',andhiggs. (BlackMax). golden channelforfindingblackholesattheLHC.MCgenerator blackholeevents Search forBSM,inparticular,extradimensionsandblackholesatthe LHC.Searchfor New physicssearchesandmeasurementsatLHC Determination ofspinandmassBSMparticles. and colliders. Models beyondtheStandardModel,andtheirsignaturesinastrophysics,cosmic rays spins ofnewparticles. How todiscoverBSManddistinguishfromoneanotheratcollider.Determination of Flavor physicsandcolliderofBSM. cosmology (baryogenesis,BBNconstraints,darkmatteranditssignatures). BSM, inparticular,SUSYmodels,theirLHCphenomenologyandapplicationto Supersymmetric models,includingcolliderphenomenologyandparticlecosmology. violation attheLHC. New physicssearch/discrimination,mass/spinmeasurementsofnewparticles,andCP Model (BSM). Collider phenomenologyoftheStandardModel(SM)andModelsBeyond Main Interest Cosmology andStatistics interacting withworld-classleadingcosmologistsandstatisticians. tools/knowledges mentionedabovesometimeshelpstudytheseshapemeasurement issues. Statistical noise. and convolution sampling, of effects observational from disentangled precisely be and manner rigorous mathematically a in modeled be to need shapes galaxy images, galaxy observed from signal distortion tiny the Toextract Universe. the of structureslarge-scale foregroundtheir to due lensing gravitational distortion ofdistantgalaxyimagescausedby tiny lensing, gravitational is IPMU at out Bayes' theorem andsoon. methods, estimation parameter selection, model are field this in discussed actively are that issues relevant The sets. data complex largeand with deal as well as sets data such from information cosmological extract to order in important increasingly becoming are methods statistical sophisticated more and statistics available, being are sets Thus we are actively working on these cosmology-statistics issues by inviting and/or inviting by issues cosmology-statistics these on working actively are we Thus carrying are we researches of One As more massive cosmological data cosmological massive more As

21 Research Program 22 Research Program ■ Dark MatterExperiment the detectoranddatahandlingsystem. of tuning arefinal we of and middle 2009, the in in autumn and summer the during assembled was detector the of parts major The constructed. was rocks nearby from neutrons and gamma rays shield to water of tons 800 contains which tank water cylindrical high 10m the that, region.to thediscovery in Wecurrentstep limit. the soon best than will better ordersmagnitude 2 of about is sensitivity experimental detector.The the in Matter dark the of interaction the from emanated light scintillation the measure and Celsius degree -100 of temperature the at down cooled interactions, massandsoon. its -- matter dark of character the reveal to andunderground placed detector large the in matter dark cold the of interactions observe directly to is XMASS, experiment, search matter dark the of aim The of. made is that what know not do we matter,but dark is Universe the of matter and energy Yasuo Takeuchi Yoichiro Suzuki Masayuki Nakahata Shigetaka Moriyama Kai Martens Jing Liu Karsten Heeger Member Dark MatterExperimentGroup In 2008, an underground cavity to house the experiment was completed and following and completed was experiment the house to cavity underground an 2008, In detector Xenon liquid ton 1 use We total the of 23% about that know We Dark MattersearchatXMASS. Discovery ofDarkMatter. Purification ofXenonforlowbackgroundexperiments. Direct detectionofDarkMatter. Identification ofparticlecandidatesforDarkMatter.Superlowbackgroundexperiments. Direct DarkMattersearchusingtheXMASSdetector. Direct darkmattersearchesinlow-energyexperiments. Main Interest Detector Developments ■ problems encountered andtheindividualsworkingonthem. the as diverse as are below projects The Universe. the understand to quest our in ingredient vital a is It workshop. or room living your into back way its find well may that technology new possibly very and - experiments future and current of reach the extend to means the accumulated. already data scientific of body massive the from conjure imagination and knowledge of use disciplined the that theories the test to data pertinent and reliable both provide to is experimentation of art The data. experimental of evidence hard the against insightbetested method demandsthatevery scientific the as science, of lifeblood the is deliver.Data they data the with knowledge of frontier the push that detectors build to technologies cutting-edge on rely astronomy Mark Vagins Yasuo Takeuchi Kai Martens Kunio Inoue Karsten Heeger Member Detector DevelopmentGroup Active detector development provides development detector Active Experimental physics and observational observational and physics Experimental emission toinjectcurrentsclean upliquidnoblegaseslikeXenonandArgon. field use to tips sharp their for grown were that dendrites copper show pictures The ■ Scanning Electron Microscope pictures taken at the IPMU Kamioka Satellite. Kamioka IPMU the at taken pictures Microscope Electron Scanning Improving theneutrinoresponseofwaterCherenkovdetectors. Development ofimpuritymeasurementsystemsinxenon. Development ofhighsensitivityradondetectorsinair,water,andxenon. Continuous removalofradonfromliquidxenon. beta decay,anddirectionalmeasurementofanti-neutrinos. Neutrino oscillation,neutrinogeophysics,astrophysics,neutrinolessdouble detectors andtechniques. Liquids scintillator,waterCherenkov,andbolometricdetectors.Ultra-lowbackground Main Interest detecting supernovarelicneutrinos. for detector Cherenkov water gadolinium-enhanced of viability the establish to used be will mine, Kamioka the in construction under now is which Systems), Detector ■ EGADS Project (Evaluating Gadolinium’s Action on Action Gadolinium’s (Evaluating Project EGADS

23 Research Program 24 Research Program Inflation andEarlyUniverse the inflationary epochintowhatitlookslikeatpresent.the inflationary Weorderon. in so questions those revealfromtackle to evolved to universe like the would how and not, or perturbations density the in non-Gaussianity large is there whether created, were asymmetry baryon the as well as matter dark the how inflation, after reheated was universe the how occurred, inflation the how known fully not is it Nevertheless increased. significantly has Universe the of understanding our and precision, unprecedented with universe early the can beprobed bystudyingtinyinhomogeneitiesintheCMBtemperature anisotropy. which models, inflation the on depend perturbations density the of properties current The the Universe. in seen galaxies the of clusters and galaxies as such structures the of seed the for account can which perturbations, density tiny generate inflaton) an (called inflation the driving field a scalar of fluctuations quantum that is inflation about important more is What Universe. the of stage early very the at expansion inflationary an introducing by solved beautifully are such asthehorizonproblem, theflatnessproblem, andthemonopoleproblem. Thoseproblems probes oftheearlyUniverse. important remain still observations three Those theory. bang big standard the for support key provide radiation (CMB) backgroundmicrowave comic the (BBN), nucleosynthesis bang big the law,Hubble's The universe. FLRW the on based is theory bang big standard the relativity,and general the of equations Einstein the of solutionisotropic and homogeneous a universe, (FLRW) Lemaitre-Robertson-Walker Friedmann- the by described is universe early the of evolution The hot. extremely and dense small, was Universe the time, in back go we if that, implies fact observational Thislaw. Hubble's the as known is which moving, is it faster the is, galaxy a away The recent progress in observational techniques has enabled us to study the evolution of evolution the study to us enabled has techniques observational progressrecentin The issues theoretical serious with plagued is theory bang big the success great its Despite further the expanding; is Universe The Credit: NASA/WMAPScienceTeam ■ Jun'ichi Yokoyama Tsutomu Yanagida Atsushi Taruya Fuminobu Takahashi Naoshi Sugiyama Seong ChanPark Hitoshi Murayama Shinji Mukohyama Alexander Kusenko Takeshi Kobayashi Ken-iti Izawa Minxing Huang Koichi Hamaguchi Motoi Endo Damien Easson Cosimo Bambi Member Inflation andEarlyUniverseGroup Inflation models.Generationoffluctuations.Stochasticinflation. experiments ofcosmicrays. mediation andpossibleexplanationsontheanomaliesobservedinPAMELA Finding theoriesbeyondthestandardmodel.Theoriesforstronglyinteractinggauge observations ofCMBanisotropies. of thestochasticbackgroundgravitationalwavesvialaserinterferometersor Probing theearlyepochofUniversethroughdirectandindirectmeasurements perturbations andnon-Gaussianity.Baryogenesis.BigBangnucleosynthesis. Mechanism ofinflationandsubsequentreheatingprocesses.Origindensity bang nucleosynthesisbyusingobservationaldata. Setting constraintsontheinflationmodelsandearlyuniversephenomenasuchasbig theory withthenon-minimalcouplingterm. f( Two differenttypesofinfationmodels,theorbifoldGUTinflationandtheorywith Leptogenesis. Modelsofinflation. Inflation andbranecosmology. Dark matter,baryogenesis,phasetransitions. Cosmology oftheearlyuniversethroughstringtheory. models. Gauge/gravity-mediated supersymmetrybreaking,supersymmetricinflation,united Non-Gaussianities intheCosmicMicrowaveBackgroundfrominflationmodels. cosmology (baryogenesis,BBNconstraints,darkmatteranditssignatures). BSM, inparticular,SUSYmodels,theirLHCphenomenologyandapplicationto Supersymmetric models,includingcolliderphenomenologyandparticlecosmology. non-standard infationarytheories. Building concretemodelsofinfationfromstringtheory.Observablepredictions or blackholephysics. its predictionsarestillreliableinothercontexts,suchasthedescriptionofuniverse essentially onlyintheperturbativeandweakfieldlimit.Thechallengeistofigureoutif General Relativityisourcurrentandsuccessfultheoryofgravity,butithasbeentested Main Interest φ )R term,socalledthenonminimal couplingterm.The(p)reheatingoftheinflation )R

25 Research Program 26 Research Program Geometry: Mathematics invariant counting Riemann surfaces on it, called Gromov-Witten(GW) invariant. One of the of One invariant. Gromov-Witten(GW) called it, on surfaces Riemann counting invariant quantum the define can we 3-fold, Calabi-Yau a On 3-fold. Calabi-Yau a of form the take to expected is space 6-dimensional extra the and 10-dimensional, be to theory,expected is spacetime string the In metric. flat Ricci a with 6 dimension real of manifold complex a is 3-fold Yau the geometricproblems weare interested in. to applications some give and symmetry,mirror the describe which notions mathematical the investigate and invent to is group geometry our of focus research the of One theories. string of types different between duality the by found was which varieties, algebraic and manifolds symplectic between duality conjectural a other. is each mirrorinfluence symmetry instance, For and connected deeply are geometries of branches various these varieties. Recently algebraic and manifolds complex manifolds, symplectic manifolds, differentiable spaces, topological andalgebra. geometry into fields the divided We IPMU. at studied mathematics of fields the are following The physicists. with working closely by mathematics modern develop to working are modern mathematicsandphysics. on influence major a had have groups quantum as such theory field quantum from arising concepts of lot a years, twenty these in Nevertheless, established. be to yet has mathematics in theory field quantum of development rigorous the freedom, of degrees of number infinite an of calculus integral and differential the treats theory field quantum Since mathematics. on by scientists suchasKepler,developed Newton,Gauss,Riemann,Maxwell,Einsteinandmanyothers. been have that universe and space of concept the of study the advancing for algebraic analysisandnumbertheory. Alarge scaledevelopmenthasbeennewlyemerging. geometry,algebraic as such differentialmathematics geometry, topology, representation theory, of development the in influences major provided have physics in systems integrable of theory mathematics andphysicshasbeeninfullflow. between interaction the years recent in Particularly concepts. original mathematician's establish to helps turn in This study. their in phenomena describe to method and language common a with general, in society sometimes and community, scientific the providing mathematics of example good a is This nature. in dynamics of law the describe to method and In the theory of mirror symmetry, a Calabi-Yau 3-fold plays an important role. A Calabi- A role. important an plays 3-fold Calabi-Yau a symmetry,mirror of theory the In as such spaces, of kinds several include mathematics in study we objects Geometric IPMU at Mathematicians influence major a had have theory field quantum of methods years, twenty past the For important particularly is physics and mathematics between collaboration close This the and theory relativity,superstring general theory, field quantum theory, Gauge language a giving calculus, integral and differential found Newton century, 17th the In Algebra: deep connectionwithGW-theory, andT. Kohnostudiestheseinvariants. a have to out turn invariants quantum theory. These field conformal the and equations soliton systems, integrable as such theory quantum of study the with begun has manifolds dimensional low of invariants quantum of theory the Also theories. Y.these and Todatheory,studies string with connection in important is conditions stability of space the of structure the and invariants DT- Understanding space. moduli Kahler stringy a be to expected is which manifold, complex a form conditions stability of set the and category, derived the on condition stability a of choice a on DT-theorydepends The correspondence). (GW/DT GW-invariant the to equivalent be to expected is and theory, string of terms in D-branes counts It invariant. Thomas(DT) isrelevantdevelopment ofthistheory inunderstandingthemirror symmetry. The collections. exceptional the of existence the show to e.g. categories, triangulated several of structure the describes and categories, triangulated of theory the develops Bondal A. group, our In manifold. mirror the on category Fukaya derived and sheaves coherent of category derived between categories triangulated of equivalence an as stated is It Kontsevich. M. by studies theperiodmap,andtheydevelopthesetheories. Saito K. GW-invariant, studies Galkin S. group, our In manifold. mirror the on map period the ways todescribethemirror istoestablishtherelationship symmetry betweenGW-invariants and describes the symmetry of things. Groups are everywhere in mathematics from Galois groupsin fromGalois mathematics Groupsarein everywherethings. of symmetry the describes mathematics andphysics. in occurring unrelated) look not may or may (which phenomena various to common structure algebraic the revealcategory. to triangulated Weseek a than structuremore with equipped are that objects of examples are categories model and DG-categories category. triangulated a of that than structure complicated more a finding on focused researchis Recent language. this in everywhere inmathematics.We isbetterdescribed knowthatsomenon-commutative geometry appear they that abstract so is category triangulated of notion The sheaves. coherent of category derived the as variety algebraic an from appears this example, For category. study ofstringtheory. the to algebra homological of machinery powerful the use to us enables physical This interpretation.a has space topological certain a of K-group a of element an that is example basic and interesting an theory, string with connection in that Recall theories. cohomology of example an is K-theory spaces. topological of groups homology of study a as began algebra algebra, andmaylieinbetweengeometry. in contained fully be not may branch representationeach and theory.course, combinatorics Of geometry, algebraic theory, category theory, number theory,(algebraic) ring (commutative) theory,areset branches group theory,the of examples Some polynomials. and integers as such On a Calabi-Yau 3-fold, we can define another quantum invariant, called Donaldson- called invariant, quantum another define can we 3-fold, Calabi-Yau a On proposedalgebra homological the use to mirroris the describe symmetry to way Another Another basic example of an algebraic structure is a group or a group action. A group A action. group a or group a is structure algebraic an of example basic Another Nowadays, abasicalgebraicinvariantassociatedwith ageometricobjectistriangulated theory.Algebra studiedatIPMUincludeshomologicalalgebraandcategory Homological Algebra is a collection of branches of mathematics, which studies the system of numbers of system the studies which mathematics, of branches of collection a is Algebra

27 Research Program 28 Research Program symmetry. the by caused phenomena the of explanation the to lead then will theory,representation or groups, of Study things. of symmetry the describes grouptopology. A in groups class mapping to theory number in groups Galois from mathematics in everywhere are Groups action. group a groupor a structureis algebraic an of example basic One phenomena. the behind laws exact the for seek to tends algebra picture, a taking if as directly rather universe the describe to used problemsthe of many arephysics in theory. field (quantum) using stated first is geometry While that sense the greater,in is geometry, with compared physics, from algebra of ``distance'' The interpretation.interpretation.productphysical an a has Westructurehas it K-theory if in ask can of group membersformore informationonhoweachdealswiththegroup inhisresearch. below table the groups.Wereferto class mapping groups,and groups,Galois braid (algebras), groups Lie algebras, operator vertex are appear that algebras) (or groups The are. we diverse how on idea an give to just in, interested areresearchers our algebras) (or groups those of a list give us Let symmetry. the by caused phenomena the of explanation the to lead then will representationgroups,or theory,topology.of groupsin Study class mapping to theory number We certainly hope to go the other direction. An example question would be if the if be would question example An direction. other the go to hope certainly We ■ Akihiro Tsuchiya Mikael Pichot Yukinobu Toda Ken Shackleton Yoshihisa Saito Kyoji Saito Susanne Reffert Hirosi Ooguri Toshitake Kohno Toshiyuki Kobayashi Shinobu Hosono Kentaro Hori Alexander Getmanenko Sergey Galkin Alex Bene Member Mathematics Group(Geometry) and thetheoryofD-modules. Conformal fieldtheorybasedonrepresentationofinfinitedimensional algebra hyperbolic). Foliationtheoryandtopologicaldynamicalsystems. Nonpositively curvedgeometryandgeometricgrouptheory(especially CAT(0)and Thomas typeinvariants,countingsemistableobjectsinthederivedcategory. model theoryorhomologicalmirrorsymmetry.ConstructionofgeneralizedDonaldson- stability conditionsonthem.Itismotivatedbyseveralbackgrounds,suchasminimal Derived categoriesofcoherentsheavesonalgebraicvarietiesandthetheory combinatorial rigidityinfamiliesofgroupshyperbolicandrelativelygroups. Large-scale geometryofgroups(eg.mappingclassgroups),inthesenseGromov Hecke algebrasandD-modules. as integrablesystems,combinatrics,finitedimensionalalgebras,algebraicgroups, especially ingeometricapproachtothesesubjects.Areasaroundsubjectssuch Representation theoryofinfinitedimensionalLiealgebrasandquantumgroups, discrete groupsandmonoids. representation theory.PartitionfunctionsofIsingmodelson(non-commutative) dimensional Liealgebras(e.g.ellipticandcuspidalalgebras)their Construction ofprimitiveformsandassociatedperiodmapsbyuseinfinite Calabi-Yau geometriesintheframeworkofStringcompactifications. and geometrytosolvemysteriesofquantumgravity. Application ofnewmathematicaltechniquesemergingattheinterfacestringtheory homology oftheloopspacesconfigurationspaces. based onquantumgroupsandconformalfieldtheory.Algebraicstructuresofthe Construction oftopologicalinvariantsforbraids,knotsand3dimensionalmanifold frree representationsbytheoriginalideaof"visibleactions"oncomplexmanifods. indefinite-Riemannian symmetricspaces.Syntheticandsystemeticstudyofmultiplicity- structure, rigidityanddeformationofdiscontinuousgroups,spectrumonlocally Discontinous groupsforhomogeneousmanifoldspreservingindefinite-Riemannian Mirror symmetryofCalabi-Yaumanifolds,anditsapplicationstoGromov-Wittentheory. real algebraicgeometry,homologicalalgebra,andtheirapplicationtostringtheory. Mirror symmetryasabridgebetweensymplecticegeometryandcomplexgeometry, Morse theoryandtheFukayacategory. Comlpex analyticmethodsfordifferentialequations,withanapplicationtowardsWitten dual Landau-Ginzburgmodels. Fano varieties,theirclassification,degenerations,Gromov-Witteninvariants,mirror terms offatgraphs. 3-manifolds, withaprimaryfocusonthecombinatorialdescriptionofthesegroupsin Mapping classgroupsofsurfaces,theirrepresentations,andrelationsto Main Interest

29 Research Program 30 Research Program ■ Kenneth J.Shackleton Yoshihisa Saito Susanne Reffert Domenico Orlando Hirosi Ooguri Toshiyuki Kobayashi Akihiro Tsuchiya Kyoji Saito Mikael Pichot Satoshi Kondo Sergey Galkin Tathagata Basak Member Mathematics Group(Algebra) complexes. topology. Teichm"ullertheoryandmappingclassgroups.Curvecomplexes,pants Geometric grouptheory.Hyperbolicandrelativelyhyperbolicgroups.Low-dimensional algebraic groups,HeckealgebrasandD-modules. subjects, forexample,integrablesystems,combinatrics,finitedimensionalalgebras, especially ingeometricapproachtothesesubjects.Studyoftheareaaround Representation theoryofinfinitedimensionalLiealgebrasandquantumgroups, (Quantum) dimermodels.crystalmeltingandspinchains. models andtopologicalstrings. Spin chains(XXZmodelandrelatedtwo-dimensionallattices)inconnectiontodimer study thelandscapeofstringvacua. and branesinsuperstringtheory.Applicationofconformalfieldtheorytechniquesto Conformal fieldtheoriesindiversedimensionsthatarerelevanttodynamicsofstrings transforms. analysis onminimalrepresentations,inparticular,constructionofgeneralizedFourier representations arebuidingblocksofunitaryrepresentations.Focusongeometric representations ofreductivegroups,anditsapplicationtomodularvarieties.2.Minimal 1.Discretely decomposablebranchinglawsoftherestrictioninfinitedimensional and thetheoryofD-modules. Conformal fieldtheorybasedonrepresentationofinfinitedimensionalalgebra discrete groupsandmonoids. representation theory.PartitionfunctionsofIsingmodelson(non-commutative) dimensional Liealgebras(e.g.ellipticandcuspidalalgebras)their Construction ofprimitiveformsandassociatedperiodmapsbyuseinfinite conjecture andthepropertyofrapiddecay.Noncommutativegeometry. Bruhat-Tits buildings.Grouptheoryandgroupalgebras.K-theory,theBaum--Connes theory. Arithmetic geometry.Useoftoolsfromalgebraicgeometrytostudyproblemsinnumber Arithmetics ofLandau-Ginzburgmodels,clustercategories,derivedcategories. of locallysymmetricvarietiesbyautomorphicforms. leads tostudyoffundamentalgroupshyperplanecomplementsanduniformizations hyperbolic orbifoldcomingfromtheautomorphismgroupofahermitianlattice.This connection betweenthemonstersimplegroupandathirteendimensionalcomplex The crossroadsofrepresentationtheory,geometryandnumbertheory.New Main Interest expected infuture experiments,andeven propose experiments toconfirmsuchmodels. be can signals of kind what predict data, experimental available the all with consistent really are models such whether examine can we models, concrete have we Once problems. these to solution better a of quest in so do to far,continue so still constructed we been and have Model questions. weak bosonshavemassesthrough themechanismpredicted bytheStandard Model. missing pieceoftheStandard Model,andwillbediscovered inexperimentsnearfuture, ifthe last the is boson Higgs The boson. Higgs called boson, scalar new a of quanta of condensation from originate masses the Model, Standard the to According masses. acquire bosons weak the how idea theoretical simple a provides how thesemassesare generated. yet experimentally confirmed been not has It bosons. vector these of masses non-zero the behind be must something that known is it theories, field quantum of consistency theFrom whole. a as bosons, weak or Models BeyondtheStandard Model and they are called are they and bosons, vector such three are There masses. β the for responsible is (which force weak the to corresponding however,those bosons, vector the far.Among so available data describes reasonably wellalltheexperimental forces different three for bosons vector and leptons quarks, with theory field quantum -decay of nucleons) are known to have to known are nucleons) of -decay The origin of the masses of the weak bosons is not the only puzzle of the Standard the of puzzle only the not is bosons weak the of masses the of origin The In order to solve these questions theoretically, various models beyond the Standard the beyond models theoretically,various questions these solve to order In • • following the about think us Let not. maybe but ..., Maybe story? the of end the that Is Model Standard the called is What Up to now, we have seen that a that seen have we now, to Up boson massesremain sosmallunderquantumcorrections? 1/ energy scale and the weak boson masses of order 10 order of masses boson weak the and scale energy The Newton constant constant Newton The condensation develop? its does Why one? just and field, scalar one has Model Standard the does Why fields. vector or fermions either are Model Standard the in freedom of degrees dynamical other all Model; Standard the in field scalar only the is boson Higgs The √ G N ℏ /c W 3 〜 + , W 10 – 19 and GeV. Why is there a huge hierarchy of order 10 order of hierarchy huge a there is GeV.Why G Z N bosons,

〜 6.7 × 10 × 6.7 -11 m 3 kg/s 2 corresponds to an energy scale energy an to corresponds 2 GeV, and how can the weak the can how GeV,and 17 between this between

31 Research Program 32 Research Program and models in quantum field theories are theories field quantum in models and Model, Standard the of extensions motivate matter dark and perturbations density primordial a newdegree offreedom andextendtheStandard Model.Suchcosmologicalissuesasinflation, introduceto motivation another hereis So, galaxies. of clusters and galaxies become eventually which universe, early in the of density fluctuations the become may field scalar a of fluctuations quantum and universe, early the in process inflationary an of because large so become have may universe Our Model. Standard the extend to motivation another find we where is This Model. Standard the in particles matter ordinary the actually is matter dark that unlikely very is energy.dark and matter dark of It consists universe the of fraction huge that known is It Model. without amodelthatextendstheStandard Model. problems such about think to impossible is it again, Once set? parameters condition initial these are energy.How dark of amount the and contrast density of normalization asymmetry, baryon include parameters condition initial Those universe. the of condition initial of values parameter input several with only is MeV,it order but of temperature the with era the to back by consideringtheoretical frameworksthatcontaintheStandard Model? theoretically,them determine to possible be it Wouldexperimentally. them measuring by only determined be can parameters these of values the and parameters, 30 about with theory field phenomena. these for account that models theoretical for seek thereforeWe Model. Standard the beyond physics some of indications be also may predictions Model Standard the from deviations of reports other some and muon, of moment magnetic anomalous the of prediction Model issues. order10 at evenshorterdistancescales. After The thermal history of early universe is described very well by the Standardleast the at by Model well very described is universe early of history thermal The quantum a by described is Model Standard The problems. following the address Wealso Standard- the from deviation fluxes, ray cosmic high-energy in excess of reports Recent length scale of order 10 order of scale length the to down probed been has nature in physics of law fundamental The physics. κ β , 2 GeV 10 GeV c and ℏ 11 are set to unity,to areset V. e

Nothing is known for surefor known is however,Nothing yet, happening is what -3 fm = 10 = fm For non-experts

[length] = [energy]= [length] -8 the

Å , which is equivalent to the energy scale of scale energy the to equivalent is which , appropriate framework in order to work on these on work to order in framework appropriate -1 is the only dimension left in left dimension only the is ■ Tsutomu Yanagida Taizan Watari Kai Wang Fuminobu Takahashi Matt Sudano Jing Shu Vikram Rentala Seong ChanPark Hirosi Ooguri Hitoshi Murayama Sourav Mandal William Klemm Ken-iti Izawa Junji Hisano Koichi Hamaguchi Paul Frampton Motoi Endo Damien Easson Won SangCho Chuan-Ren Chen Member Models BeyondtheStandardModelGroup anomalies. PAMELAandATICdatasearchingforaconvincingmodelthatexplains theobserved quintessence, landscapes. SUSY breakingandmediation,flavorpattern,GUT,inflation,Peccei-Quinn axion, ModelbuildingandphenomenologybeyondtheStandardin general. Their collidertestsattheCERNLHC. ModelbuildingofBSMphysics,inparticularSUSYmodelsaswellneutrinomodels. breaking, darkmatter,andSUSYinflationmodels. Supersymmetry. Linkbetweensupersymmetricmodelsandcosmology,suchasSUSY Dynamical supersymmetrybreakinganditsmediation. Warpedextradimensionmodels.Stronglycoupledtheory. SpindeterminationusingquantuminterferenceattheLHC. Gauge-Higgs unification,orbifoldGUT,littleHiggsetc. VariousideasoftheBSM:warpedextradimension,modelEWSBincontext mechanisms ingaugetheoriesandsuperstringtheory. theory oranyotherconsistentofquantumgravity.Supersymmetrybreaking Generalconstraintsonlowenergyeffectivetheoriesthatarisefromsuperstring Supersymmetrybreakingmodelsandphenomenology. and colliders. ModelsbeyondtheStandardModel,andtheirsignaturesinastrophysics,cosmicrays at acollider.Determinationofspinsnewparticles. Signaturesfromvariousbeyondthestandardmodels.Distinguishingoneanother models. Gauge/gravity-mediatedsupersymmetrybreaking.Supersymmetricinflation.United Construction ofrealisticmodelsatTeVandGUTscales. Supersymmetricmodels.Searchforcluesinacceleratorandnon-acceleratorphysics. (baryogenesis, BBNconstraints,darkmatteranditssignatures). SUSYmodelsandtheirLHCphenomenologyapplicationtocosmology Model building.Chiralcolor. Supersymmetric modelsincludingcolliderphenomenologyandparticlecosmology. Universe. Physics beyondtheStandardModeltoexplainoriginofdarkcomponents phenomenology. Supersymmetry/Extra Dimensionmodels,andtheircolliderdarkmatter phenomenology andcosmology. Model, includingSUSYandLittleHiggsmodels.InterplaybetweentheLHC ColliderphenomenologyoftheStandardModelandmodelsbeyond Main Interest

33 Research Program 34 Research Program Neutrino Physics very sensitive, especially to low energy neutrinos from nuclear reactors and those generated those and reactors nuclear from neutrinos energy low to especially sensitive, very it makes scintillator. This liquid of tons 1,000 with filled is it water of instead but Kamiokande, of neutrinosfrom distantsupernovas. stream a constant of detection first-ever the allow should benefits, physics other many among and, backgrounds reduce greatly will This gadolinium. element the with Super-Kamiokande inside water ultrapure the enrich to initiative an GADZOOKS!, on working now are members IPMU problem. the to solution angle mixing large the selected uniquely and flight, in while flavor their change could Sun the in reaction Boron-8 the by produced neutrinos solar that indicating by problem neutrino solar the of solution the to contribution crucial a made Super-K 2001 In data. experimental solid on based revised be to needed Model Standard the that inception its since time first the was StandardThis predictedthe Model. not by something mass, non-zero but small, a have neutrinos three the of two least at that implied also This oscillation. neutrino as another,known to process type a one from transform spontaneously can neutrinos of types different that discovery stunning the made Super-K 1998 in atmosphere, Earth's the in interactions ray cosmic by generated neutrinos studying By Alps. Japanese the under world. the in detectors neutrino famous most and best the of some on working researchershave of we teams IPMU At both. or sensitive, very big, very be to need detectors neutrino means That all. at matter with interact hardly they study,because to challenging exceedingly are neutrino, the tau,andatauneutrino. called lepton charged a quarks, of pair final a contains family third the while neutrino, muon the and muon, the called lepton charged a quarks, of types more two contains generation second The neutral. electrically is which neutrino, electron the called is lepton generation first- other the and charge, electric an carries which electron, the is lepton such one family first the In leptons. called particles massive less much two and quarks two are there families, or generations, these of each In particles. fundamental of generations three contains mysterious oftheseare theneutrinos. mostthe perhaps and too, particles, fundamental unusual more much are there But quarks. called particles fundamental smallermuch of composed objects composite themselves are which neutrons, protonsas well as particles, and fundamental tell) can we as far (as indeed are which nature?heardhave people Most electrons,of The KamLAND neutrino detector is located in the same ancient zinc mine as Super- as mine zinc ancient same the in located is detector neutrino KamLAND The deep buried water of tank ton 50,000 a is detector [Super-K] Super-Kamiokande The tau the and neutrino, muon the neutrino, electron the neutrinos, of types three The StandardThe physics particle Model of ofblocks building the are What ■ inaccessible placesandfarthestreaches oftheuniverseitself. most the probe to particles of tiniest these using are researchers IPMU stars, exploding inside and Sun, the within Earth, the above Earth, the upon Earth, the within them produce which volume. detector the to Xenon-136 of addition the via experiment decay beta double neutrinoless a huge into detector KamLAND the transforming as well as Sun, the in reaction Beryllium-7 the by produced neutrinos solar energy low very detect to KamLAND modifying on working currently aremembers IPMU oscillations. neutrino proofof clear signal; reactorneutrino the in distortions spectral of evidence saw interior.KamLAND Earth's 2005, the in study Also to way new entirely an in ushering geoneutrinos, detect to experiment first the was KamLAND 2005 in analyzed, be could data their which at threshold energy the lowering After fashion. spectacular in data neutrino solar experiments' other matched which neutrinos, reactor of disappearance observe to experiment first the was KamLAND 2002 In itself. Earth the within decays radioactive by Mark Vagins Yasuo Takeuchi Yoichiro Suzuki Henry W.Sobel Jan Schuemann Masayuki Nakahata Hitoshi Murayama Sourav Mandal Kai Martens Alexander Kusenko Takaaki Kajita Kunio Inoue Glenn Horton-Smith Karsten Heeger Member Neutrino PhysicsGroup As we continue to understand the mysterious neutrinos, as well as the varied processes varied the as well as neutrinos, mysterious the understand to continue we As power reactors.T2Kexperiment.GADZOOKS Measurements ofneutrinosandantineutrinosfromsupernovae,the sun,andnuclear Low-energyneutrinoobservationsinSuper-Kamiokande. by usingman-madeneutrinos.Doublebetadecayexperiments. Experimental studyonneutrinooscillationsbyusingextra-terrestrial neutrinosandalso Super-Kamiokande andT2Kexperiments.Neutrinophysics.Supernova. Protondecay. neutrinos fromdistantsupernovae. Improving theSuper-KamiokandedetectorbyintroducingGadolinium. Detectionof neutrino oscillation. measurement oftheenergyspectrumforconfirmationmattereffect Boron-8 solarneutrinomeasurementbySuper-Kamiokandedetector.Precise Neutrinooscillationphenomenology.KamLAND. and colliders. Models beyondtheStandardModel,andtheirsignaturesinastrophysics,cosmicrays explosion. Super-Kamiokande experimentfordetectingneutrinosfromgalacticsupernova(typeII) Supernova neutrinos,sterileneutrinos. Atmosphericneutrino.Longbaselineexperiments.Neutrinooscillations. beta decay.Directionalmeasurementofanti-neutrinos. Neutrino oscillation.geophysics.astrophysics.Neutrinolessdouble KamLAND experiment.Neutrinooscillation. beta decay. Neutrino oscillationexperimentswithreactorneutrinos.Searchforneutrinolessdouble Main Interest

35 Research Program 36 Research Program Hyper SuprimeCamera(HSC): Weak gravitationallensing: Cosmology Observational a few. In fact these data sets will provide us an ideal data sets for exploring the nature of dark of nature the exploring for sets data ideal an us provide will sets data these fact few.In a of redshifts to up Universe the probe to depth the to reaches and degrees square thousands few a of area an covers that survey galaxy massive a designing and planning are we quality, image excellent and speed survey its HSC, of capabilities unique the utilizing Fully 10. of factor a by one current the than field-of-view wider has that camera new a Telescopewith Subaru of simulations oflarge-scale structure. as well as sets data Subaru own our using phenomena lensing weak of studies theoretical and observational out carrying are energy.We dark and matter dark components, invisible of nature the studying for way powerful a offer observables based lensing weak energy.Thus dark natureof the to sensitive is that history expansion cosmic the on strengthsdepend lensing the scales, distance cosmological on propagation light the with deals shear lensing weak the matter.Moreover,dark invisible since of distribution the reconstruct to us allows images galaxy between signals shear coherent the shear.measuring Conversely,lensing weak so-called the - distorted be to image the causing propagation, the during structure large-scale intervening Mauna Kea(4,200m),Hawaii. of summit the at telescope optical-infrared meter 8.2 Telescope, Subaru with survey future the of design and planning the in involved actively are and surveys current from measurements on worked have We surveys. galaxy massive from explored be can energy dark of nature the and distribution matter dark The formation. structure of growth the affects therefore and expansion, cosmic accelerating the drives energy dark of presence the addition In structure. large-scale of formation the understanding to crucial is CDM of amount anddistribution revealing Therefore structures. hierarchical present-day the form to perturbations density seed the amplifies distribution CDM of inhomogeneities spatial by driven mainly instability gravitational wheremodel, dominated (CDM) matter dark cold the by given is scenario conventional cosmology.most currently observational The inissues compelling most of one is Universe the in structure large-scale of The HSC, currently under construction, is the project to replace the prime focus camera focus prime the replace to project the is construction, under currently HSC, The of force gravitational by bent is galaxy distant a by emitted ray light of path The origin and nature the Understanding Sloan Digital Sky Survey III: Sloan DigitalSkySurvey development ofdataanalysispipeline. and survey galaxy HSC of planning and designing the on working and project, HSC this in involved actively are members, IPMU We, statistics. clustering galaxy and lensing weak data, the from available observables cosmological of measurements via energy dark and matter estimates ontheacousticscaleaswellcosmologicalparameters. unbiased obtain to order in clustering galaxy of properties measuring for method optimal an develop to planning are energy.We dark of models the test to enabling thereby redshift, galaxy the to distance diameter angular the infer can ruler,we standard a as scale acoustic the Using universe. early the in oscillations acoustic baryon by imprinted scale characteristic the detect to quasars and galaxies luminous of distribution spatial the map (BOSS)will Survey Spectroscopic Oscillation Baryon the surveys, planned the of particular,one In release. data public the before sets data the to access freely can and SDSSIII in involved are members, IPMU We, spectrograph. improved the with universe deeper a to surveys SDSS previous the extending telescope, 2.5-meter Observatory's Point Apache the of capability spectroscopic Over the next six years (2008-2014), the SDSSIII will exploit the unique wide-field unique the exploit will SDSSIII the (2008-2014), years six next the Over

37 Research Program 38 Research Program ■ Naoki Yoshida Jun'ichi Yokoyama Atsushi Taruya Masayuki Tanaka Masaomi Tanaka Masahiro Takada Naoshi Sugiyama John Silverman Jan Schuemann Takaya Nozawa Keiichi Maeda Tsz YanLam Issha Kayo Yen-Ting Lin Member Observational CosmologyGroup generate alargenumberofmockcataloguesforfutureobservational programs. Large galaxysurveysandweaklensingobservations.Computersimulations to AnalysisofCMBanisotropy. Gaussianity aswelltotesttheoryofgravity. as HSCandBOSStoconstraindarkenergy,massiveneutrinos,primordial non- theory andobservations.Apursuitoftheprospectsforfutureobservations such various cosmologicalscenariosand/orhypothesisthroughdirectcomparisonbetween Modeling dynamicsandstatisticsoflarge-scalestructuretheUniverse,testing Large Telescope. structures usingdatafromtheSloanDigitalSkySurvey,Subarutelescope,andVery Observational studiesoftheformationandevolutiongalaxieslarge-scale understand theoriginoftheirdiverseproperties. Supernova cosmology.ObservationsandmodellingofnearbyTypeIasupernovaeto Survey. energy, withthegravitationallensingobservables.FutureSubaruWeakLensing structures oftheuniverse.Naturedarksideuniverse,matterand Observational andtheoreticalstudiesofgravitationallensingcausedbyhierarchical lensing. using observationaldatasuchasthebaryonacousticoscillationandgravitational Investigation oftheCosmicMicrowaveBackground.Testingdarkenergymodels in nearbygalaxygroups. Deep FieldSouth.X-rayobservationsofActiveGalacticNucleiuptohighredshiftand spectroscopic surveysofgalaxiesindeepfieldssuchasCOSMOSandtheChandra Evolution ofgalaxiesandsupermassiveblackholes.Largeoptical/near-infrared Super-Kamiokande byaddingGadolinium. Study ofneutrinofluxesandtheiroriginusingSuper-Kamiokande.Improvingthe the observationalcosmologyusingTypeIasupernovaeasastandardcandle. Evolution ofdustthroughoutthecosmichistory.Evaluationimpactson supernovae ascosmologicaldistanceindicators. Supernova cosmology,especiallyintheevaluationofapplicabilityTypeIa primordial non-Gaussianity. Galaxy surveystoconstraincosmologicalmodels.Large-scalestructureprobesof the darkenergy. Construction ofahomogeneouscataloggravitationallylensedquasarstoconstrain particularly usingthedatafromSloanDigitalSkySurveyandN-bodysimulations. Extraction ofcosmologicalinformationfromthelarge-scalestructureUniverse, data. nuclei. Evolutionaryconnectionsbetweengalaxiesatz=0andz=1usingfutureHSC survey andradiosurveystoelucidatethephenomenonofradio-loudactivegalactic supermassive blackholesontheformationofgiantgalaxies.DataanalysisBOSS Formation andevolutionofgalaxies.Rolesgalacticmergersfeedbackfrom Main Interest Axion andastrophysics: Particle darkmattermodelsandphenomenology: Particle Astrophysics time scale.Infact,theaxion isoneofthecandidatesforcolddarkmatter. cosmological a thereforein and stable light, very is axion the interactions, extremelyweak its to Due modified. significantly be argumentwould cooling supernovae the or stars sequence main the of evolution the otherwise since enough, weak be must they but particles, model standard the to couplings has axion The chromodynamics(QCD). quantum the in problem CP strong hint ofwhatmakesupthedarkmater. a us telling be already may this debate, under still is anomaly PAMELA the of interpretation the Although excess. the explain wereproposedto models matter dark many and PAMELAsatellite, the by observed was fraction positron cosmic-ray the in rise steep a Recently signature. matter the MilkyWay halo,andtheearlyuniverse. in substructuresCenter, galaxies, Galactic spheroidal the dwarf e.g. high: is density matter dark the where enhanced is rate annihilation matter particular,dark In background. astrophysical over excess an as observed be may which rays, cosmic high-energy to contribute particles cosmology aswellparticlephysics. in mystery big a remains question the matter,and dark the up makes what yet known not is fundamental physicsanditsimplicationforcosmology. dark matterparticleandaxion. include particles These experiments. ground-based with do to difficult is which particles, interacting weakly extremely search can we importantly, presently attainableenergy scale.Most the than higher much be can scale energy typical the that in experiments accelerator over advantage great a has it theory; high-energy test can we where laboratory a is universe the sense a In physics. particle into insight gain can we which from universe, the and galaxy the in phenomena energy The axion plays an important role in cosmology and astrophysics. If dark matter consists matter dark If astrophysics. and cosmology in role important an plays axion The dark the detect may thereforeregions these from cosmic-rays of measurements The energetic Those particles. high-energy decay,producing or annihilate could matter Dark underlying of evidence observational for look to topics following the on working Weare The axion was originally proposed by Peccei and Quinn in 1977 as a solution to the to solution a as 1977 in Quinn and Peccei by proposed originally was axion The it However observation. by established firmly been has matter dark of existence The high of kinds various are There Magellan/U.Arizona/D.Clowe etal. Magellan/U.Arizona/D.Clowe etal.;LensingMap:NASA/STScI;ESOWFI; Credit: X-ray:NASA/CXC/CfA/M.Markevitchetal.;Optical:NASA/STScI;

39 Research Program 40 Research Program and thedecayproduct maycontributeto theultra-high-energyinterconnect, cosmicrays. strings the when or loop string the of cusp the from produced be can particles heavy very instance For string. cosmic the as such source exotic an to due be any,may if limit, GZK the beyond excess The cosmic-rays. ultra-high-energy the for source exotic an search to is other The us. propagationto its largeenergyand very at cosmic-rays the of astrophysicalorigin the study to is one sides; two has rays cosmic ultra-high-energy the Studying photons. CMB ambient the with interactions the from produced are pions because distance cosmological a propagate cannot cut-off this above energy with proton a limit; Greisen-Zatsepin-Kuzmin(GZK) < 10 Ultra-high-energy cosmicrays Neutrino physics: may shedlightonthehigh-energy theory. observation astrophysical or search axion ground-based from axion light very of detection the the axion.Itisknownthatmanyaxion-likeparticlesare present inthestringtheory. Interestingly, to axionsonthewayEarth. converted be sourcemay distant froma emitted gamma-rays of fraction some and Also supernovae. Sun) the (e.g. stars of interior the in produced be can axions weak, are interactions the Although experiment. cavity microwave through them detect to able be may we axion, of complementary informationon thenaturecomplementary of darkmatter.with us provides will neutrino the using search matter dark indirect The Pole. South the at IceCube and SuperKamiokande as such detectors neutrino by detected be can neutrinos galactic nuclei(AGN),gamma-raybursts,etc. remnants,active supernova supernovae, e.g. areproducedfromastrophysicalobjects neutrinos handed neutrinothrough thesee-sawmechanism. right- the for scale mass high a suggests also scale mass neutrino tiny The asymmetry. baryon the of relatedorigin be the may to it and known, not is mass neutrino the of origin The masses. non-zero tiny have neutrinos the of) two the least (at that suggest oscillations flavor neutrino The travels. it as flavors other into oscillates flavor certain a of neutrino the that evidence found remains oneoftheleastunderstoodparticles. neutrino the Nevertheless, then. since studied extensively been have neutrinos the later,and years 25 confirmed was hypothesis The decay. beta in energy of non-conservation apparent there is a well-known upper bound on the cosmic-ray energy,cosmic-ray the on bound upper well-known a is there energies, higher even to go Way.we Milky If the to galaxies extra from travel Galaxy.They our 15.5 Since the ultra-high-energy cosmic-ray particles have the highest energy that human that energy highest the have particles cosmic-ray ultra-high-energy the Since Detailed study of such cosmological and astrophysical effects may reveal the presence of presence the reveal may effects astrophysical and cosmological such of study Detailed Cosmic rays are considered to be produced by supernovae remnants in our Galaxy for Galaxy our in remnants supernovae by produced be to consideredare rays Cosmic Thosedecay. or annihilation matter dark from produced be also can neutrino The Our universeisfilledwithcoldneutrinosproduced earlyuniverse.High-energy inthevery and neutrinos solar and atmospheric the measured collaboration SuperKamiokande The from neutrino the of existence the of hypothesis forward put Pauli Wolfgang 1930 In Those cosmic-ray particles with a higher energy are believed to have their origin outside origin their have to believed areenergy higher a with particles cosmic-ray Those V. e E < 5×10 < 19 eV, known as the as eV,known E

■ beings haveevermeasured, itcandirectly probe highenergy physicsatvery scales. Mark Vagins Fuminobu Takahashi Naoshi Sugiyama Jing Shu Seong ChanPark Mihoko Nojiri Hitoshi Murayama Kai Martens Sourav Mandal Alexander Kusenko Junji Hisano Karsten Heeger Koichi Hamaguchi Cosimo Bambi Member Particle AstrophysicsGroup following supernovaexplosionsanywherewithinourgalaxy. like Betelgeuse,anditwouldenablethedetectionofverylate-timeblackholeformation a weekinadvance,oftheimpendingstellarcollapselarge,relativelynearbystar Neutron detectioninlargewaterCherenkovdetectorswouldallowearlywarning,upto as measuringthedynamicsofsupernovasviatheirneutrinospectraandtimestructure. My workinvolvesprobingthereactionswithinsunviaitsneutrinoemissions,aswell High-energy cosmicraysfromdarkmatter. Acceleration ofcosmicraysanditsrelevanceforstructurestheuniverse. Baryogenesis, electroweakphasetransition,topologicaldefects,anddarkmatter. in linkingDMwithinflaton. center andthepositronexcesspreliminarilyreportedbyPAMELA.Iamalsointerested reported 'anomalies'inastrophysicalobservations:The511keVlinefromthegalactic Dark matterismyprimaryconcern.Asashorttermgoal,Ihopetoexplaintherecently I wanttousehybrideventsbetterunderstandtheairshowersthemselves. the Universewithaimtopositivelyidentifytheirorigin.Onwaythatloftygoal The TelescopeArrayexperimentstudiesthehighestenergycosmicraysthatpermeate and colliders. Models beyondtheStandardModel,andtheirsignaturesinastrophysics,cosmicrays astrophysical neutrinos. Ultrahigh-energy cosmicraysandveryhighenergygammarays,darkmatter, Theoretical studiesfordarkmatterdetection. Solar neutrinos. matter anditssignatures). phenomenology andapplicationtocosmology(baryogenesis,BBNconstraints,dark Physics beyondthestandardmodel,inparticularSUSYmodels,theirLHC or blackholephysics. its predictionsarestillreliableinothercontexts,suchasthedescriptionofuniverse essentially onlyintheperturbativeandweakfieldlimit.Thechallengeistofigureoutif General Relativityisourcurrentandsuccessfultheoryofgravity,butithasbeentested Main Interest

41 Research Program 42 Research Program excitation signature from the remnant the fromsignature excitation final-state by dominated is 44% of efficiency detection The Super-Kamiokande. of exposure kton-yr 141 a about one order of magnitude of present limits. Similarly, SO(10) theories suggest theories SO(10) Similarly, limits. present of magnitude of order one about background. At present, the best limit on this mode ( mode this on limit best present,the background.At ≈ Proton Decay search fornucleondecayinevitablyrequires larger detectors. 10 experimental informationisnotavailable. further if construct mathematical a only remain will theory unification grand subsequent Every results. experimental the by out ruled been has SU(5), minimal model, unification simplest The success. a been already has program This physics. of development future the for value unique has goal this toward progress any and data, experimental with theories unified grand confronting of problem the to approaches few the of one provides decay nucleon decay signalhasemerged. nucleon a of hint no date, Todecay. nucleon of shoals the on floundered has another after theory promising one 1980's, the in searches large-scale first the with Beginning all. us outlive to determined seems proton however,the Experimentally,decay. to ``wants'' protonthe scale, mass intermediate TeVa with those particularly theories, unified grand most In today. physics particle in challenges experimental and theoretical greatest the of one represents events/Mton-yr. τ is mode this on limit present The future. foreseeable the for free background remain should × 10 for grand-unification, the proton lifetime (into the favored the (into lifetime proton the grand-unification, for combining several channels, the most sensitive of which is which of sensitive most the channels, several combining of result the is Super-Kamiokande from limit present The neutrino. unobservable the to due 10 / / 33 β 35 years, for example, requires a detector with approximately10 with requires detector example, a for years, 29 >2.3×10 years - about a factor of ten beyond the present limit. Thus, continued progress in the in progress continued Thus, limit. present the beyond ten of factor a about - years

Moreover, the enormous mass and exposure required to improve significantly on existing on significantly improverequiredexposure to and Moreover, mass enormous the The search for nucleon decay requires massive detectors. A search with a sensitivity of sensitivity a with search A detectors. massive requires decay nucleon for search The ofstudy the this, of spite In protonthe of stability The Supersymmetric theories favor the mode mode the favor theories Supersymmetric Recent theoretical work suggests that if super-symmetric SO(10) provides the framework the provides SO(10) super-symmetric if that suggests work theoretical Recent The ``classical'' proton decay mode, decay proton ``classical'' The nucleons pertonofmaterial,thisimpliesdetectorsmulti-kilotonscale. π 0 absorption or charge-exchange in the nucleus, and the expected background is 2 is background expected the and nucleus, the in charge-exchange or absorption 33 yr(90%CL). 15 N nucleus. Monte Carlo studies suggest that this mode this that suggest studies Carlo Monte nucleus. N p → p →ν e + π τ K 0 / / , can be efficiently detected with low with detected efficiently be can , β + , which is experimentally moredifficult experimentally is which , > 8.2 × 10 × 8.2 > ν K K + + → decay mode) must lie within lie must mode) decay 33 nucleons. Since thereare6 Since nucleons. μ + 33 ν yr, fromcomes CL) 90% accompanied by a de- a by accompanied τ / β( e π 0 )

■ the same. preparedbe futuremust any experiment and do past, to astrophysicsthe particle in and physics neutrino to contributions fundamental made have experiments decay Protondecay. to proton the for waiting while questions physics important other address to ability experiment's future any of importance the underline detection) positive for prospects unknowable the (and limits Mark Vagins Yoichiro Suzuki Henry W.Sobel Jan Schuemann Takaaki Kajita Member Proton DecayGroup decay. backgrounds. Developmentofnext-generation,megaton-scaleexperimentsforproton free neutronssignificantlysuppressingatmosphericneutrino-inducedprotondecay Improving theprotondecaymeasurementinwater-baseddetectorsviadetectionof type oflightsensorforsuchdetectors. dark matter,doublebetadecayandlowenergysolarneutrinos.Developmentofanew Future largewaterCherenkovdetectorsandalsofuturemulti-purposefor Updated measurementofprotondecay. Updated protonlifetimemeasurementusingGadolinium-enrichedSuper-Kamiokande. Updated searchesforprotondecays. Main Interest

43 Research Program 44 Research Program of nature will terminate at 10 at terminate will nature of structure hierarchical the that think to reasons are thereSurprisingly, indefinitely? continue progression phenomena atshorteranddistances.Doesthis exploring by nature of laws fundamental for searched mathematics. All of these aspects of string theory aremathematics. Alloftheseaspectsstringtheory vigorously investigatedatIPMU. in developments important many inspired also has It transitions. phase quantum and liquid quantum interactions), quark of (theory QCD as such - systems interacting strongly involving often - physics theoretical in problems difficult many study to tools powerful provides It physics. particle of Model Standard the beyond models and cosmology universe early into insights us given has theory The Hawking. Stephen by posed holes black of paradox information the as such gravity quantum of mysteries various solve us helped has theory Superstring physics. to unifygeneralrelativity andquantummechanicstodeducetheStandard Modelofparticle necessary ingredients the all contains it since scale Planck the at physics describe to framework mathematical a for candidate leading a is theory Superstring structure. fundamental more a since itisthedistancewhere thehierarchical structure ofnature willterminate. fundamental truly is length Planck The principle. uncertainty of kind new a is This length. Planck the than shorter distances at happening is what seeing apart. ever from physicists prevent would torn This be would time and space of fabric the that much so geometry the perturb would energy this at measurementway, the another in Stated area. interaction entire the conceal will horizon event its and form will hole black energy,a high such with particles collide we no. When is answer The length? Planck the than shorter distances probe can it that high so energy with collider a build we can ask: then may far.One so case the been has This explore. can we distances shorter the particles, collide to use we energy more The distances. short probe to colliders particle build Physicists case. the be might this why explain to thought-experiment a perform us Let length. Planck String Theory Space and time do not exist beyond the Planck scale, and they should emerge from emerge should they and scale, Planck the beyond exist not do time and Space

In the past few hundred years, scientists have scientists years, hundred few past the In –35 meter, the so-called meter,the ■ Taizan Watari Tadashi Takayanagi Shigeki Sugimoto Yogesh Srivastava Cornelius Schmidt-Colinet Ken Shackleton Susanne Reffert Domenico Orlando Hirosi Ooguri Tatsuma Nishioka Shinji Mukohyama Andrei Mikhailov Wei Li Daniel Krefl Toshiya Imoto Shinobu Hosono Kentaro Hori Minxin Huang Simeon Hellerman Jose FigueroaO'Farrill Dongfeng Gao Damien Easson Member String TheoryGroup String phenomenology.Inflation(inthepast).GUTandF-theorycompactification. entropy suchastheblackholeentropy. AdS/CFT duality.Relationbetweentheentanglemententropyand gravitational String theoryasquantumgravityespeciallyfromtheviewpointofholography suchas and hadronphysics. Conjectured dualitybetweenstringtheoryandgaugetheory,itsapplicationtoQCD various fields. Black HolesinStringTheory,Gauge-Gravitycorrespondenceanditsapplications Conformal fieldtheoryanditsapplicationsinstringtheory. Teichmueller space. Connection betweenstringtheoryandthecompletionofWeil-Peterssonmetricon String compactifications.Topologicalstringtheory. Exact CFTsolutions.Topologicalstrings.EffectivedescriptionsforM-theory. energy physics,astrophysics,andcosmology. Development oftheoreticaltoolstoapplystringtheoryquestionsrelevanthigh Gauge/Gravity Duality,BlackHolePhysics. String cosmology. integrability. String worldsheettheory,Green-Schwarzandpurespinorformalism,AdS/CFT, Black holes.Gauge/Gravitycorrespondence.3Dquantumgravity. Topological stringtheoryandmirrorsymmetrywithO-planesD-branes. Holographic QCD. Mirror symmetryofCalabi-YaumanifoldsanditsapplicationstoGromov-Wittentheory. well assupersymmetricgaugetheoriesinvariousdimensions. holonomy manifolds,worldsheetapproachestoheteroticstrings.Topologicalstringsas approaches toTypeIIorientifoldswithD-branesandfluxes,M-theoryonG_2 4d N=1stringcompactificationsinvariousframeworks,especially,worldsheet Topological stringtheory. Aspects oftheAdS/CFTcorrespondencesuchaspp-waves,andgiantgravitons. theory ingenericenvironments. particle physicsandmathematics.Developmentoftoolstounderstandapplystring Stringtheoryanditsconnectionstoquantumgravity,cosmology,condensedmatter, AdS/CFT, M2-branetheories,andsupergravitysolutions. Mathematical aspectsofstringtheory. theory. BraneGasmodelofstringcosmology. Building modelsofinflationfromstringtheory.Timedependentsolutionsin Main Interest

45 Research Program 46 Research Program Structure Formation programs suchasSubaru-HSCdarkenergy survey. observational large generation next for proposals and plans good making for used be will studies these from Results structure.large-scale of formation the and galaxies, of evolution and canbedirectlyobservations usedtoverifythem. predictions,solid wheremake stage can a whereasat now theory is broadCosmology a of class supernovae. distant and distribution galaxy large-scale radiation, background microwave cosmic of observations recent from accuracy great with determined been have universe early luminous objectssuchgalaxies. forming eventually gravity, of action the by grow fluctuations density primeval These universe. early very the in inflation called phase expansion rapid a through generated are matter of distribution the in ``ripples'' Tinyborn. was it when hot very and homogeneous nearly was universe the that models. theoretical sophisticated and simulations computer large using formed are objects these how study We structure. large-scale and galaxies, stars, as such universe, day Our primary interests are in primordial star formation in the early universe, the formation the universe, early the in formation star primordial in areinterests primary Our the of condition the describe that statistic basic and universe the of content energy The posits model Bang Big standard The There are rich structures inthepresent- ■ Naoki Yoshida Marcos Valdes Rajat ManiThomas Atsushi Taruya Masayuki Tanaka Masahiro Takada Naoshi Sugiyama Ikkoh Shimizu Yen-Ting Lin Tsz YanLam Issha Kayo Member Structure FormationGroup supercomputer simulations. Formation ofstars,galaxiesandthelarge-scalestructureuniverseusing Cosmic reionizationandthenatureofdarkmatter.High-energyastrophysics. in theearlyuniverse. 21cm observationsoftheepochreionization.FastcomputationHIIbubblegrowth Gaussianity aswelltotesttheoryofgravity. as HSCandBOSStoconstraindarkenergy,massiveneutrinos,primordialnon- theory andobservations.Apursuitoftheprospectsforfutureobservationssuch various cosmologicalscenariosand/orhypothesisthroughdirectcomparisonbetween Modeling dynamicsandstatisticsoflarge-scalestructuretheUniverse,testing Large Telescope. structures usingdatafromtheSloanDigitalSkySurvey,Subarutelescope,andVery Observational studiesoftheformationandevolutiongalaxieslarge-scale Survey. energy, withthegravitationallensingobservables.FutureSubaruWeakLensing structures oftheuniverse.Naturedarksideuniverse,matterand Observational andtheoreticalstudiesofgravitationallensingcausedbyhierarchical fields. Investigation oflinearevolutionstructureintheuniverseandeffectmagnetic Theoretical modelsofhighredshiftgalaxies. cosmology. the statisticalpropertiesofclusters(suchasclusteringandabundance)toconstrain SDSS, andSubaru,tostudytheevolutionofgalaxieswithinclusters,aswelluse clusters viatheSunyaev-Zel'dovicheffect(SZE).AnalysesofdatafromACT, Atacama CosmologyTelescope(ACT)project,alargeclustersurveythatdetects halo formation. Distributions ofdarkmatterhalosandfield.Environmentaldependence gravitationally lensedquasarstoconstrainthedarkenergy. data generatedbyN-bodysimulations.Constructionofahomogeneouscatalog particularly usingtheactualdatatakenbySloanDigitalSkySurveyandvirtual Extraction ofcosmologicalinformationfromthelarge-scalestructureUniverse, Main Interest

47 Research Program 48 Research Program Supernova evolution oftheUniverse. the on influences their and supernovae comprehensivelyunderstand to aim we attempts, these unifying By Maeda). (K. telescope Subaru the using observations and Maeda), K. Nomoto, (K. indicators distance cosmological as use their of evaluation and supernovae from emission (T.grains dust Wanajo),of (S. formation optical beyond of and iron Maeda) theory (K. Nozawa), to up elements of nucleosynthesis Nomoto), (K. explosion thermonuclear of theory Vagins), (M. Kamioka at neutrinos these detect to attempt and Sato) (K. supernovae from neutrinos of theory Sato), (K. explosion and core-collapse of theory Nomoto), (K. supernovae toward stars of Evolution supernovae; to related topics the of most cover we IPMU, At investigation. under of theDarkEnergy. discovery the to leading indicators, distance cosmological as use their by highlighted is natures their understanding of importance Finally, galaxies. of evolution and formation in even roles important play could explosions supernova and huge, is explosions the at produced energy Their elements. of sorts different hundred a about with filled is Universe the reality in although elements, minor some and helium hydrogen, only be would Universe the in baryons them, without Universe; the in elements heavy of contributors main the are they Furthermore, Earth. the on experiments by addressed be not can which of some physics, neutrino as such processes, physical of range a for nuclear reactions withinawhite-dwarfstar. supernovae (Type Ia)are explosionsdrivenby Thermonuclear neutrinos. of amount huge a neutrona by announced hole, black a or star massive astheSun),followedbyformationof as times ten than more (i.e., stars massive of collapse gravitational the of outcome the are Ic) and Ib, II, (Type supernovae Core-collapselives. their of end the at Our understanding of the above issues is still far from satisfying, with various issues still issues various with satisfying, from far still is issues above the of understanding Our laboratories natural provide Supernovae stars of explosions are Supernovae ■ Naoki Yoshida Mark Vagins Shinya Wanajo Masaomi Tanaka Yasuo Takeuchi Yoichiro Suzuki Henry W.Sobel Jan Schuemann Takaya Nozawa Ken'ichi Nomoto Masayuki Nakahata Keiichi Maeda Alexander Kusenko Member Supernova Group telescopes. light-curves andhuntingforhighredshiftsupernovaeusinggroud-basedspace Theory ofevolutionverymassivestarsandcore-collapsesupernovae.Supernova neutrinos fromasupernovawithinourgalaxy. Improvement ofSuper-Kamiokandeexperiment'sresponsetothearrivalaburst Detection ofthediffuseneutrinobackgroundproducedbydistantsupernovae. species (e.g.,gold,platinum,uranium,etc.)incore-collapsesupernovae. Origin ofelementsthataresynthesizedinsupernovae.Nucleosynthesisr-process spectroscopy andspectropolarimetry.Numericalsimulationsofradiativetransfer. Observations ofcore-collapseandTypeIasupernovaeespeciallywithoptical Real-time neutrinoburstsearchinSuper-Kamiokande. supernovae everyyear. Development offuturemulti-megatondetectorswhichcandetectneutrinoburstsfrom decay. Super-Kamiokande andT2Kforstudyingneutrinophysics,supernova,proton formations, pastandpresent. Gadolinium-upgrade forSuper-Kamiokandeobservingneutrinosfromsupernova destruction ofdustintheshockdrivenbysupernovae. Evolution ofdustathighredshifts,consideringtheformationinsupernovaeand huge explosionenergyfromblackholesandneutronstars. evolution. Gamma-rayburstsandhypernovaetoclarifytheproductionmechanismsof mechanism. Evolutionandnucleosynthesisoffirststarstostudycosmicchemical and theequationofstatedarkenergybyclarifyingprogenitorsexplosion Type Iasupernovacosmologytoprovideprecisionconstraintsoncosmicacceleration supernova burstneutrinosandrelicneutrinos. Search forsupernovaneutrinosusingSuper-Kamiokandedetector.Itcoversboth supernovae. Theory ofnucleosynthesisandradiationtransfer.Observationsindividual Pulsar kicks,supernovaneutrinos,asymmetries. Main Interest

49 Research Program 50 Research Program 6. The MostLuminousType IaSupernova ``super-Chandrasekhar mass'' white dwarf has also been suggested. However, there is also is However,there suggested. been also has dwarf white mass'' ``super-Chandrasekhar objects, two these For 2009dc). SN than luminous less are they (although discovered already been have 2006gz and 2003fg SNe luminous extremely other two 2009, Before limit! Chandrasekhar the exceeds dwarf white progenitor the that means This required. is SNe, of as luminousotherType IaSNe(andis8billion timesasluminousthesun!). times 3 nearly is history.luminosity in TypeThe SN luminous Ia most the is SN this revealedthat has group research the result, a As telescope. domestic and telescope Subaru with SN this for observations intensive conducted collaborators, of team a with together Tanaka, Masaomi luminosity, isthereason whyType IaSNecanbeusedasadistanceindicator intheuniverse. brilliant its as well as uniformity, This luminosity. constant nearly a have SNe thisIa property,Typeto Thanks mass). solar (1.4 limit Chandrasekhar the called so mass, limiting a to enough close becomes dwarf white the of mass the when triggered is explosion The dwarfs. white of explosions arethe TypeSNe (SNe). Ia Typesupernovae distant Ia of observations the by century To emit this huge luminosity, 1.6 solar mass of radioactive 56Ni, the heating source heating the 56Ni, radioactive of mass solar 1.6 luminosity, huge this emit To However, an interesting Type Ia SN, named SN 2009dc, was discovered in 2009 April. 2009 in discovered was 2009dc, SN named SN, Ia Type interesting However,an 20th the of end the at revealed was universe our of expansion the of acceleration The marked withthetwolines.Theimagesizeis3arcminxarcmin. is SN The University. Hiroshima observatory, Higashi-Hiroshima telescope, KANATA ■ Optical image of the most luminous Type Ia SN 2009dc in UGC 10064, taken with the with taken 10064, UGC in 2009dc SN Ia Type luminous most the of image Optical Research Highlight

51 Research Highlight 52 Research Highlight Journal Letters2009,Vol. 707,pp.L118-L122. Astrophysical The 1209-1216, pp. 714, Vol. 2010, Journal Astrophysical The reading: Further Astrophysics, andScuolaNormaleSuperiore diPisa. for institute Planck Technology,Max of Institute TokyoUniversity, Kagoshima Observatory, AstronomicalGunma Japan, Yamanaka),of Masayuki Astronomicalby National (led Observatory HiroshimaUniversity Maeda), Keiichi and Tanaka,Nomoto, (Masaomi ichi IPMU Ken of team the by conducted cosmology.researchwas in The use their and SNe TypeIa of scenario theoretical current the on questions casts SN Ia Type discovered,``super-Chandrasekhar''mass newly The indicator.distance a as SNe Ia Type of property important an is uniformity The mass. large the Chandrasekhar'' mass. ''super- a has progenitor the that concluded is it thus, and round, almost is 2009dc SN Ia Type luminous most the Therefore, 0.3%. than less only be to found was polarization the measurements, accurate With SN. mass of``super-Chandrasekhar'' candidate the for measurement polarization first the figure). is the This in case electromagnetic(``deformed'' wave of direction oscillating the on depending light, the of strength the in variation a detect would we round, not is explosion the If FOCAS. instrument, an with equipped telescope Subaru explosion becauseSNeare discovered indistantgalaxies(aboutafewmillionlightyearsaway). SN the of shape the ``see'' cannot we Unfortunately, dwarf. white Chandrasekhar-mass a of explosion asymmetric highly a by caused are SNe luminous extremely these that scenario a The progenitor star of SN 2009dc is thought to be rapidly rotating so that it can support can it that so rotating rapidly be to thought is 2009dc SN of star progenitor The the with SN this of measurement polarization the performed group research the Thus, luminous TypeIaSN2009dcis consistentwiththe``round''case. most the from emission the that revealed group research The direction. oscillation the on depends emission the of strength the (``deformed''), round not is explosion the if hand, other the On direction. oscillation the on independent is emission the of strength the ■ A schematic illustration of the polarization property of a SN. If the explosion is round, is explosion the If SN. a of property polarization the of illustration schematic A Topological StringandBlackHoleMicrostates relation totopologicalstringhasbeenmuch clarified. particular,its In progress. dramatic made have states bound D-brane count to methods years, few past the In states. bound D-brane of number the of logarithm the to equal be then should entropy hole black The D-branes. of states bound as described are states quantum microscopic expressed intermsofthetopologicalstringamplitudes. correctedquantum the that showed They computation. the in entropy concisely be can formula holes black near effects quantum incorporate and theory semi-classical the beyond go can one theory,string topological the using by that, found collaborators the and Ooguri radiance. hole black of theory semi-classical the on and mechanics hole black and thermodynamics between remarkablea proposedentropyon the basedanalogy for holes mathematical formula black a of Hawking and 1970’s,Bekenstein early the In hole. black a of states quantum microscopic of number the count to used be can string topological that discovered Harvard of Vafa Cumrun answer.an give amplitudes these which Andrewwith together Ooguri 2004, StromingerIn and clear atthattime. not was amplitudes superstring these However, of dimensions. significance 6 physical in tensor metric the of details knowing without amplitudes these compute to possible it makes string topological of simplicity The paragraph. above the in described as space compact a to up curled are dimensions extra 6 when theory, superstring in amplitudes scattering certain compute to used be can amplitudes these that showed also They model. toy this of amplitudes quantum In 1993,Hirosi Ooguriandhiscollaboratorsdevelopedpowerfulmathematicaltoolstocompute physical quantitiesfrom superstringtheory, orsoitseemed. compute to easy be not tensor,would metric it the knowing Without space. curved a describe to quantity geometric fundamental most the - tensor metric its for expression an know even not do we example, For remain.problems many but physicists, and mathematicians by studied need extremelywe highenergy toseeit.Geometricalproperties ofsuch6-dimensionalspacesarethat actively small so space “compact” a form to up curled are extra dimensions the that is space 3 only happen can fromit hidden way be One must sight. exist, our if dimensions, with extra 6 dimensions, world the in live we Since dimensions. time 1 and space 9 in defined is theory Superstring particles. elementary of theory unified ultimate the construct relativityto and often leadstoabroad rangeofapplications. models toy of Simplicity particles. elementary of annihilation and creation and circuits, electrical waves, electromagnetic and hydrodynamic bodies, elastic of vibrations as physical such other phenomena, of variety a describe to used be can oscillator harmonic the that out turned It swings. small-angle to approximation good a provides it and motion, pendulum of model toy a is oscillator harmonic the example, For features. essential their capturing systems, physical In superstring theory, D-branes can be used to describe black holes. For such black holes, black such For holes. black describe theory,to superstring used In be can D-branes to physics in question compelling a find to collaborators and Ooguri for years 11 took It theory. superstring of model toy a as Witten Edward by invented was Topologicalstring general and mechanics quantum combine to attempt ambitious an is theory Superstring In theoretical physics, toy models play important roles. They are simplified versions of versions simplified are They roles. important play models toy physics, theoretical In

53 Research Highlight 54 Research Highlight Letters 102(2009)161601. Review Physical 179, (2009) 292 Physics Mathematical in Communications reading: Further Planck scale. discovered byOoguriandYamazaki willbeanimportanttoymodelasweexplore physicsatthe meters. Rather, theyshouldemerge from more meltingmodel fundamentalconcepts.Thecrystal space and time do not exist at distance shorter than the Planck length, which is about 10 about is which length, Planck the than shorter distance at exist not do time and space arethe crystal fundamentalconstituentsofspace andtime. of atoms model, this In crystal. the from removed are atoms of number macroscopic a where model, melting crystal the of limit thermodynamic the from emerges manifolds Calabi-Yau of in thecombinatorialstructure ofthecrystal. encoded is Calabi-Yau manifold the of geometry The figure. the larger,growsin black hole shown as the atoms, or molecules loses crystal the As crystal. perfect a to corresponds hole black a without space-time the Yamazaki, and Ooguri by work the to accordingSimilarly, corners. in3dimensions. a moltencrystal correspondence one-to-one in is of D-branes by configuration a constructed with hole black a of state quantum each manifolds'', Calabi-Yau ``toric called spaces of class a to up curled is space 6-dimensional extra the when that, showed They holes. black of states quantum of description In the unified theory of quantum mechanics and general relativity, it is expected that expected is relativity,it general and mechanics quantum of theory unified the In geometry smooth the how showed Yamazaki and paper,Ooguri subsequent the In its from molecules losing starts it melts, it When molecules. water of crystal a is ice An new a discovered Yamazaki Masahito student graduate IPMU with Ooguri 2009, In Calabi-Yau manifoldisencoded inthecombinatorialstructureofcrystal. the of geometry The larger. grows hole black the atoms, or molecules loses crystal the As crystal. perfect a to corresponds hole black a without space-time the Similarly, corners. ■ An ice is a crystal of water molecules. When it melts, it starts losing molecules from its from molecules losing starts it melts, it When molecules. water of crystal a is ice An -36

Topological Insulatorsfrom StringTheory may beabletoresolve someoftherelated issues. holography the Thus systems. coupled strongly in difficult very be to known been has problem particular,this In well. understood been not have insulators new undiscovered of possibilities and classifications systematical their present, at known are insulators topological several though Even field. electric orthogonal an presenceof the in induced is boundary the currentat spin the and symmetry reversal time a with insulators in occurs phenomena This effect. Hall quantum spin the is insulators topological of example new relatively One field. electric the to orthogonal is current the that so flux magnetic a with material dimensional (2+1) of boundary the at generated be will current electric an effect, Hall quantum In effect. Hall quantum the of generalizations as insulators topological regard can Weflow. can current) heat or spin electric, the as (such currents some boundary this along then edge, its cutting by boundary a simple(seetheleftfigures).definition ofatopologicalinsulatorisvery The theorists. matter condensed by energetically analyzed been have and experiments by of D-branesleadtotheideaholography. viewpoints different two between equivalence This spacetime. curved a with D-branes replace can we eventually, relativity.Thus, general the to according metric spacetime the bend will they objects, massive are D-branes since hand, other the On theory. gauge U(N) dimensional (p+1) a by described is Dp-branes coincident N field, gauge a generates string open an Since theory. string of spacetime dimensional ten the in embedded end, can strings open where hypersurface dimensional (p+1) a is Dp-brane A theory. string in D-branes, called objects, analogous toe.g.sometypesofsuperconductors from theEinstein'sgeneralrelativity. systems quantum complicated in quantities physical calculate can we that means This theory. gravity coupled weakly a to system quantum coupled strongly a relates it that is holography of point attractive Another gravity. without theory a by equally theory gravitational a describe can we that in remarkable is This systems. manybody quantum and spacetimes various on gravity quantum between equivalence an means which holography, called relation the from Energy 2010. Physics''inFebruary High Meets Physics Matter ``Condensed entitled week Focus IPMU an organizedBerkeley, at inUniversityofCalifornia Masaki OshikawaattheInstituteforSolidStatePhysicsandShinseiRyu Tokyo, of University the in Aoki Hideo with together IPMU, at TakayanagiTadashi and Ooguri Hirosi Indeed, superconductors.Tc high and atoms cold effects, Hall quantum superfluid, as such years, several these for attempted been have systems matter condensed to theory string of applications now,interesting till many understood completely been not have still us presents theory string which gravity quantum of properties the though theory.Even string from physics in quantities any calculate can we that expect we principle, in Therefore, universe. our in The material itself is an insulator and thus no currents flow in its bulk. However, if it has it However, if bulk. its in flow currents no thus and insulator an is itself material The recently studied been have which materials interesting very are insulators Topological remarkable of properties analyzing by found was holography of idea the Originally, stems physics matter condensed to useful be can theory string why reason important An The main aim of string theory is a quantization of gravity and a unification of all forces all of unification a and gravity of quantization a is theory string of aim main The

55 Research Highlight 56 Research Highlight Further reading: JournalofHighEnergy Physics06,066(2009)andarXiv:1001.0763. expect. we what with agree they found and entropy entanglement topological and conductivity Hall the calculated They time. first the for theory string on based effect Hall quantum fractional of dual holographic a constructed University Kyoto in Fujita Mitsutoshi and IPMU at Li Wei same time,thisleadstotheconstructionoftheirholographicduals. the At interactions. account into taking insulators topological of each describes which theory field quantum effective an down write to way convenient a us offers construction D-brane Our K-theory. called framework mathematical a with nicely fits also This orientifolds. and D-branes of q) and p (i.e. dimensions the of choices different to correspond insulators topological of types Different figure). the of side right-hand the (see orientifolds called object another without or with theory superstring in Dq-branes and Dp-branes of systems as realized be can insulators topological known all that found eventually They viewpoints. theory string from Ryu As the most important example of such holography, Ryu and Takayanagi, together with together Takayanagi, and holography,Ryu such of example important most the As theorist matter condensed a with problem this studied Takayanagi this, by Motivated theory. string in projection orientifold the to mapped now is effect Hall quantum spin of symmetry reversal time The respectively. electrons, spin down and up with identified are they and strings open of kinds two have will we Accordingly D3-brane. anti an is which D3-brane of image mirror the considering by fermions two have will we addition, in 3-plane orientifold common directionsofD7andD3-braneworld-volume.Inthelower rightfigure,wehavean the in extends spacetime dimension (2+1) the that Notice systems. Hall quantum the in spin up the with electron an with identified is which dimension (2+1) in fermion Dirac massive a to leads D3-brane and D7 the between string open the figure, right upper the In current. WeshowinthetworightfigurestheirD-braneconfigurations insuperstringtheory. spin a is but current, charge net no is there Thus way. opposite a in moving electron spin down a with accompanied be always should electron spin up an that requires symmetry reversal time the case, latter the in hand, other the On material. dimensional (2+1) the of edge the along moves electron spin up only and flux magnetic the by broken is symmetry reversal time the effect, Hall quantum the In respectively. effect, Hall quantum spin or effect Hall quantum of sketch a shows figure left lower or upper The (right). theory string ■ A schematic structure of topological insulators (left) and their D-brane constructions in constructions D-brane their and (left) insulators topological of structure schematic A Cosmological implicationsofnewquantumgravitytheory we know. think we what fromdifferently behaves gravity because all at matter dark need not do we that Horˇava'sif hand, other the On data. observational explain case the be might it then right to is theory new matter dark need we then relativity general Einstein's believe we matter.If dark of mystery the solve might and theory the of prediction inevitable an is matter'' ``dark built-in of existence The dynamical. slightly center stellar the makes thus and star a toward accelerates slowly matter'' ''dark the theory: this in solution stellar static exactly spherically-symmetric, no is there that proving by picture this strengthened Mukohyama, with along IPMU, at Izumi general relativity atlowenergy butcaninsteadmimicgeneralrelativity plusdarkmatter. Keisuke cosmological implications. its investigate to important is gravity,it quantum for theory candidate new a Having energies. high at theory the of behavior good of indication an is which renormalizability'', counting ''power- called property a has theory This gravity. quantum for theory candidate new a Horˇava'sPetr 2009, proposed January In physics. theoretical in dreams greatest the of one ``quantum gravity'',adream reconciling theory Einstein'sgeneralrelativity andquantumtheory. need we universe the of beginning the understand to orderTherefore, in work. won't relativity general of theory Einstein's even physics, quantum of realm this In down. breaks totally theory classical on based description usual the that significant so become fluctuations quantum point, universe. Theuniverseintheearlyepochwasdenser, more energetic andmore Atsome curved. Shinji Mukohyama at IPMU showed that Horˇava's new theory does not precisely recoverHorˇava'sprecisely that not showed does IPMU theory at new Mukohyama Shinji been has gravity quantum of reasons,other theory many ultimate and an this finding For Let us imagine the time is reversed and we go back toward the beginning of the of beginning the toward back go we and reversed is time the imagine us Let a ■ power-law expansion a figure, this In important. becomes scaling anisotropic the which above scale energy exits the sound horizon ( horizon sound the exits horizon ( horizon is the scale factor of the universe, the of factor scale the is Physical wavelength(red)vs.sound horizonscale(black).Physicalwavelength( 〜 H -1 ) in the low-energy epoch ( epoch low-energy the in ) a ∝ t 〜 p with1/3< ( M 2 H ) -1/3 ) in the high-energy epoch ( epoch high-energy the in ) p H= <1 issupposed. <1 H a 4 /a ≪ is the Hubble expansion rate and rate expansion Hubble the is M ), where ), k is the comoving wave number, wave comoving the is H ≫ M ) and re-enters the re-enters and ) M 〜 is the is a/k )

57 Research Highlight 58 Research Highlight Physics 0906(2009)001;LettersB6796. Astroparticle and Cosmology of Journal 064005; (2009) D80 Review Physical reading: Further H.E.S.S., MAGIC,DECIGO,BBO,etc. FERMI, as such experiments various in theory the of signatures seek to important is it Also, needed. are studies theoreticalgravity. Further quantum of theory candidate a as infancy its in bound. spectral shape of the gravitational waves if waves gravitational the of shape spectral characteristic detect to chance a have may detectors wave gravitational Future important. M=10 for spectrum background wave gravitational the shows figure Second waves. gravitational and asymmetry baryon of enhancement as such scaling anisotropic the of implications cosmological other investigated U.), (NagoyaYokoyama Shuichiro and Tokyo) (U. Nakayama structures intheuniversesuchasgalaxiesandclustersofgalaxies. rich the seed can authors, many by confirmed as mechanism, This (right). epoch low-energy the in (black) horizon the re-enters and (left) epoch high-energy the in (black) horizon sound the exits (red) wavelength Physical mechanism. the of idea basic the illustrates figure first The inflation. cosmic on relying without perturbations cosmological scale-invariant generate to mechanism new a proposed Mukohyama scaling, anisotropic the on Based it. from stems above mentioned renormalizability'' the``power-counting Indeed, scaling. anisotropic called 11 While we have found a number of intriguing cosmological implications, this theory is still is theory this implications, cosmological intriguing of number a found have we While Fuminobu Takahashi and Shinji Mukohyama at IPMU, in collaboration with Kazunori with collaboration in IPMU, at Mukohyama Shinji and Takahashi Fuminobu behavior short-distance a is theory new the of ingredients essential most the of One (10 corresponds to M=10 to corresponds ■ DECIGO (BBO)andultimate-DECIGO arealsoshownbybluedottedlines. of Sensitivities respectively. figure, the of top the on RD(UV) and RD(IR) MD, by shown as regime UV with era dominated radiation and regime IR with era dominated radiation 8 )~GeV,where Predicted gravitational wave background spectrum. Solid (dashed) black line black (dashed) Solid spectrum. background wave gravitational Predicted M 11 is the energy scale above which the anisotropic scaling becomes scaling anisotropic the which above scale energy the is (10 8 )GeV. A mode enters the horizon in the matter dominated era, dominated matter the in horizon the enters mode A )GeV. M happens to be close to the current observational observational current the to close be to happens = zw = on it. curvature positive of metric a introduce can one and sphere two-dimensional of topology a has it line, projective complex a with isomorphism its establishes conic a on point a fromProjection properties thatcharacterizeLandau--Ginzburg potentials amongotherfunctions. geometric the also and equations, differential of set the in QDEs the distinguish that properties the to as ideas fundamental more needs one dimensions, higher to method this extend to order In invariants. Gromov-Witten their predicted and list Iskovskikh's on threefolds of families 17 all to variations mirror--dual found Golyshev Vasily one, to equal number Betti second Ginzburg models(Laurent polynomials)thatare mirror dualtotheFanovarieties. Landau-- the determine properties what and cohomology, quantum the from come that equations differential about special is what know to needs one words, other In objects. similar among them distinguish that properties the and side mirror the on objects the of shape the the lattertwoquestionsandprovides anewhopeforthefirstone. topologies'' or``howtodegenerateagivenvariety?'' their about say one can varieties'',``what Fano classify to ``how like geometry in questions to of acertainkind). argument multiple of (functions models Landau−-Ginzburg and varieties Fano between duality mirror conjectural a is thereFinally, (QDE). equation differential quantum one into packed elegantly be can which cohomology) (quantum invariants Gromov--Witten genus--zero of theory rich a has it so line), projective of (image curve rational a by connected are variety Fano a on points Two sheaves. coherent of category derived its from reconstructed be can variety Fano a that shown have Orlov and Bondal theory. string the and algebra homological the by examples are homogeneousvarieties,completeintersectionstherein, andtheirblowups. known the of Most 3. than higher dimensions in varieties Fano for description conceptual any or classification no is thereYet Mukai. and Mori Iskovskikh, to due is threefolds Fano smooth to a system of polynomial equations over complex numbers. For instance, the equation the instance, For numbers. complex over equations polynomial of system a to Fano Varieties intheMirror or blowups of the projective plane in plane projective the of blowups or quadric either are surfaces) Pezzo del as also (known surfaces Fano conic, a is curve Fano only The dimension. given any in varieties Fano smooth for topologies possible of number finite a only are there that proved Mori and Kollar,Miyaoka kind. this of are quadrics smooth and Imposing an extra equation extra an Imposing space. projective 3-dimensional in surface quadric projective smooth a defines projectivization defines a three-dimensional quadratic cone (which is singular at the origin) and its and origin) the at singular is (which cone quadratic three-dimensional a defines Positively curved complex projective varieties are called are varieties projective complex curved Positively Mirror symmetry would also imply the existence of a natural integral structure in the in structure integral natural a of existence the imply also would symmetry Mirror the with threefolds for QDE's of nature modular the unveiling work pioneering his In determine to first needs symmetry,one mirror using by varieties Fano classify to order In addresses collaborators his and Galkin Sergey mathematician IPMU the of research The answer the predicting) (or understanding in us help ideas ``physical'' these of any Can influenced mathematics new the with spaces these of geometry the tackle may One The basic object of study in algebraic geometry is geometry algebraic in study of object basic The w=z defines a section --- section a defines d generic points with points generic complex projective curve projective complex algebraic variety algebraic d Fano varieties Fano <8. A complete classification of classification complete A <8. --- the set of solutions of set the --- . Projective spaces Projective . called conic. called xy xy

59 Research Highlight 60 Research Highlight Riemann's zeta-function)allowsonetoread offcharacteristicnumbersofavarietyfrom itsQDE. of values of independence algebraic on conjectures standard with conjuction (in conjecture This Grassmannians. to similar varieties for it prove to able were Golyshev with together and varieties, of largeclass a for coincide classes cohomology two these conjecturedthat Iritani and Galkin QDE. and ring cohomology quantum its from derived variety Fano a of invariant explicit an is which class Apery the introduced has Galkin Sergey development, different a In stacks. have the mirror as Laurent polynomials Laurent as mirror the have to known are plane projective a and surface quadric a example, For fan. toric its of vertices all varieties with singularities similar to the singularity of a quadratic cone at the origin. In the case the In origin. the at cone quadratic a of singularity the to similar singularities with varieties toric into varieties smooth of degenerations for holds also hypothesis the that conjectured proven by Givental: the mirror of such variety is a Laurenta polynomial is variety mirrorsuch the of provenGivental: by predict itsproperties andnumericalinvariants. to one enable and smoothing Fano the of model Landau--Ginzburg dual mirror a suggest may variety Fano toric smoothable a Thus, therein. intersection complete a or above) figure the see variety(e.g. toric singular a to degeneration a admit to tend varieties Fano smooth known The transform by the by transform mirror its as cycles holomorphic of K-theory the in structure integral the from comes structure integral This connection. quantum the to respect with lattice flat a i.e. cohomology, quantum In the case of smooth toric Fano varieties the ``toric degeneration hypothesis'' has been has hypothesis'' degeneration ``toric the varieties Fano toric smooth of case the In The other approach ( approach other The X by lattice polytopes, and the polytope of polytope the and polytopes, lattice by ■

toric degeneration toric 4-dimensional cohomologyof the and points torus-fixed smooth 4 to correspond that faces triangular 4 and points singular 9 to correspond that faces rectangular 9 has It 3. dimension in singularities cone ＋ An extraordinary, in many respects, family of prime Fano threefolds Fano prime of family respects, many in extraordinary, An 1 X

＋ Y cohomological Gamma-class cohomological ＋ 1 Y

＋ Z T 22 ＋ , which is quite extraordinary, too. Toric Fano varieties are encoded are varieties Fano Toric too. extraordinary, quite is which , toric degeneration hypothesis degeneration toric 1 Z

＋ X Y

V ＋ 22 Y X . ThemirrorisgivenbytheLaurentpolynomial

＋ X Z

＋

X T Z X

22 ＋ , as shown by Hiroshi Iritani in the case of toric of case the in Iritani Hiroshi by shown as , ＋ is the only self-dual polytope with quadratic with polytope self-dual only the is Y

X YZ

＋

＋

X 1

YZ X

＋

＋

Y 1

) is currently but a phenomenology.a but currently is ) 1 YZ

and

X

＋ Y

Σ ＋ m V

x XY 1 22

m has a small a has

, respectively. It is respectively.It , where m runs over runs Further reading: http://sergey.ipmu.jp polynomials? the pinpoint to sufficient restrictions these Are polynomials. Laurent the of coefficients on restrictions strong impose mutability of conditions very the Moreover plane. projective the of for agivenvariety. degenerations toric of hierarchy infinite the predict and below) figure the see (e.g. mutations cluster the apply consecutively can one surface, Pezzo del a to dual mirror is which polynomial Laurent a from starting that, shown have Usnich Alexander and Galkin Sergey recently variety by special birational transformations which preserve the volume form volume the preserve which transformations birational special by variety the corresponding polytopeisknown. inside monomials the to coefficients assigning of method no degenerations toric general the of We remark that the complete list of toric degenerations is known so far only in the case the in only far so known is degenerations toric of list complete the that remarkWe However, one can relate the Laurent polynomials to different degenerations of a given a of degenerations different to polynomials Laurent the relate can However,one c transformation betweentwoquadruples ofintegervectors. (lower figures). The respective Laurent polynomials are polynomials Laurent respective The figures). (lower ■ ＋ which preserves the volume form volume the preserves which cartesian square of a line (upper figures). The degenerate fiber degenerate The figures). (upper line a of square cartesian are toric. For toric. are

X All varieties in the family of quadric surfaces quadric of family the in varieties All ＋ ３ Y

＋ 1 X

. These polynomials are related by the transformation the by related are polynomials These . c ≠ 0 all these surfaces are isomorphic to the smooth one which is a is which one smooth the to isomorphic are surfaces these all 0

dX X

∧

dY Y

xy

. On the cluster level it is seen as a as seen is it level cluster the On . = z ( z-cw ) that depend on the parameter the on depend that ) X ＋ c =0 is a cone over a conic a over cone a is =0

Y ( X , ＋ Y )

X 1 →

＋ (

＋ 1

Y 1 XY

X and

, ＋ 1

Y Y Π

X ＋

d )

xi x i

. Thus .

61 Research Highlight 62 Research Highlight 7. The ANTARES Deep-SeaNeutrinoTelescope Jun 1,PaschalCoyle,Marseille andD-Modules Quantum Curves May 28,LotteHollands,Univ. Amsterdam fluctuations The firstgenerationofgalaxiesand21cm May 28,SmadarNaoz,Tel Aviv products K3 surfaceswithinvolutionandBorcherds May 8,Ken-IchiYoshikawa, Univ. Tokyo Gromov-Witten andIntegrableHierarchies Theory Univ. Apr 27,Todor EliseevMilanov, North Carolina State The LandscapeofIntersectingBraneModels Apr 21,FlorianGmeiner, NIKHEF WithoutPrejudiceSupersymmetry Apr 16,JoAnneHewett,SLAC Composite HiggsPhysics Apr 15,ChristopheGrojean, CERN Improved HolographicQCD Apr 9,EliasKiritsis,Univ. Creta The Kerr/CFTCorrespondence Apr 2,Wei Song,Inst.Theo.Phys.,ChineseAcad.Sci. Is there eternalinflationinthecosmiclandscape? Tye,Apr 1,Henry Cornell JFY2009

Seminars Aspects ofHorava-Lifshitzcosmology Jun 12,ShinjiMukohyama,IPMU On three-dimensional chiralgravity CONICET Jun 11,GastonGiribet,Univ. BuenosAires and order phasetransition Viable modelsendingwithafirst- inflationary Jun 11,MarinaCortes,Univ. Sussex Axions inParticlePhysicsandCosmology Jun 10,Georg Raffelt, MaxPlanckInst. Massive Stars:KeyPlayersintheEarlyUniverse Jun 10,RaphaelHirschi,KeeleUniv. cohomology operation Multiplication indifferential cohomologyand Jun 8,KiyonoriGomi,KyotoUniv. Formation Cosmological SimulationsofEarlyStructure Jun 5,Darren Reed,LosAlamos Generic elementsofthemappingclassgroup Jun 4,JosephMaher, Titech Rare DecaysofLightParticles Rare Opportunities:SeekingNewPhysicswith Univ.Jun 4,DouglasBryman, BritishColumbia andGamma Apery Jun 4,Sergei Galkin,IPMU 21cm cosmology Jun 2,Ue-LiPen,CITA

63 Seminars 64 Seminars Entanglement inquantumchains Jul 23,Bernard Nienhuis,Amsterdam Univ. Modeling GRBHostGalaxies Jul 23,Yuu Niino,KyotoUniv. Defects andsymmetries Jul 21,IngoRunkel,King'sCollegeLondon Extremal (super-) conformalfieldtheories Jul 16,MatthiasGaberdiel, ETHZurich galaxies Escape fractionofionizingphotonsinhigh-z Jul 16,Kentaro Nagamine, Univ. Nevada Dark MatterandPAMELA /Fermi Anomalies Jul 15,Tsutomu Yanagida, IPMU Remnants Cosmic-Ray Positrons andSupernova/Pulsar/GRB Jul 15,KunihitoIoka,KEK Collider phenomenologyofsplit-UED Jul 9,MichihisaTakeuchi, ICRR matter annihilation Cosmological andastrophysical probes ofdark Jul 2,KazunoriNakayama,ICRR Some thoughtsonthelarge-scale CMBanomalies Jun 30,Kin-Wang Ng,Inst.Phys.Taiwan Energy andSigma8 Two Topics inClusterCosmology:StudyingDark Jun 29,SubhabrataMajumdar, TIFR torsion andautomorphicforms K3 surfaceswithinvolution,equivariantanalytic Jun 19,Ken-IchiYoshikawa, Univ. Tokyo processes withinitialstateradiation Novel reconstruction techniqueforNewPhysics Jun 18,MihokoM.Nojiri,IPMU/KEK the Planckdata non-Gaussianity: Two bigthingstoexpectfrom Lecture onB-modepolarizationandPrimordial Jun 17,Eiichiro Komatsu,Univ. Texas WMAP Primordial non-Gaussianityandconstraintsfrom Jun 16,KendrickSmith,Univ. Cambridge Horava-Lifshitz Holography Jun 12,Tatsuma Nishioka,KyotoUniv. Theory Holographic Lifshitz-likeFixedPointinString Jun 12,Tadashi Takayanagi, IPMU Global Torelli theorem forhyperkaehlermanifolds Aug 31,MishaVerbitsky, IPMU Richardson coefficients Exactly solvablemodelsoftilingsandLittlewood-- Aug 28,PaulZinn-Justin,Univ. Pierre etMarieCurie environmental effects onAGNactivities Testing AGNfeedbackmodelsandsimulating Aug 25,Min-SuShin,PrincetonUniv. Non-geometric heterotic compactifications Aug 25,DavidMorrison,UCSB Form FactorDarkMatter Aug 20,BrianFeldstein,BostonUniv. LHC Twin HiggsandLeptonNumberViolation atthe Aug 20,GohHock-seng,Berkeley Accelerator Fermilab PlanwithanIntensityFrontier Aug 19,Young-Kee Kim,Fermilab foundation andsomecalculations --the Lagrangian intersectionFloertheory Aug 19,Hiroshi Ohta,NagoyaUniv. Chari-Fourie-Khandai Categorical approach forWeyl modules,after Aug 13,KatsuyukiNaoi,Univ. Tokyo Kazhdan-Lusztig Theory Aug 12,NanhuaXi,ChineseAcad.Sci. LHC starts beforeLast betsforHiggsandSupersymmetry the Aug 11,JohnEllis,CERN Spiky stringsandspinchains Aug 6,NickDorey, DAMTP ofsupernovaremnantsX-ray observations Recent studiesonsupernovanucleosynthesiswith Aug 6,Hiroya Yamaguchi, RIKEN Couplings Theoretical ConstraintsontheHiggsEffective Aug 5,IanLow, Argonne/Northwestern Univ. Evolution andReionization with SubaruTelescope:Implications forGalaxy ofz=7Ly-alphaEmittingGalaxies Deep Surveys Aug 5,KazuakiOta,RIKEN Mapping classgroup forhyperkaehlermanifolds Jul 27,MishaVerbitsky, ITEPMoscow/IPMU II Stability andWall-crossing forDerivedCategories Oct 16,MaximKontsevich,IHES Higgs ExemptNo-ScaleSupersymmetry Oct 15,JasonEvans,IPMU Stability andWall-crossing forDerivedCategoriesI Oct 15,MaximKontsevich,IHES 1st lecture: Neutrino MassesandMixings Oct 14,PaulFrampton,UNCandIPMU 2d Liouvillecorrelators from 4dgaugetheories Oct 9,Yuji Tachikawa, IAS Clusters andLarge ScaleClustering The MICEsimulations:AbundanceofMassive Oct 9,MartinCrocce, Inst.SpaceScience,Spain Prospects Heterotic OrbifoldPhenomenology:Statusand Oct 7,SaulRamos-Sanchez,DESY Disk GalaxySimulations The EvolutionofGiantMolecularCloudsinGlobal Oct 2,ElizabethTasker, Univ. Florida/NAOJ p-adic strings Sep 25,PaulH.Frampton,UNCandIPMU Fast ReionizationSimulationsforLOFAR Sep 24,RajatManiThomas,IPMU Volumes ofmodulispacesalgebraic curves Sep 18,PeterZograf,SteklovInst.St.Petersburg Dept. Quantization insemi-infiniteHodgetheory Sep 17,Hiroshi Iritani,KyushuUniv. models Topological strings,blackholes,andmatrix Sep 15,MinxinHuang,IPMU hadron-hadron processes 2nd lecture: Jetfragmentation,hadronization and Webber,Sep 14,Bryan Univ. Cambridge Probabilities Oscillating NeutrinosandDecay Sep 9,StuartFreedman, BerkeleyandIPMU distributions andpartonshowering 1st lecture: Deepinelasticscattering,parton Webber,Sep 8,Bryan Univ. Cambridge the Riemannsphere application toordinary differential equationson Fractional calculusofWeyl algebraandits Sep 8,Toshi Oshima,Univ. Tokyo and inhomogeneities Apparent cosmologicalacceleration,darkenergy Nov 24,AntonioEneaRomano, YITP Scalar fieldintheanisotropic Universe Nov 24,MasatoMinamitsuji,SogangUniv. To thelocalbeginningofinflationandbeyond Nov 24,AlexeiA.Starobinsky, LandauInst./RESCEU Perturbation Theory Chiral Algebrasof(0,2)Models:Beyond Nov 24,JunyaYagi, RutgersUniv. Towards ofLeptogenesis aQuantumTheory Nov 19,Marco Drewes, Lausanne 4th lecture: IdentifyingDarkMatterasBlackHoles Nov 18,PaulFrampton,UNCandIPMU Fuzzy spheres andM2-M5systemsinABJM Nov 10,HoratiuNastase,Titech theory Differential GradedCategoriesandheterotic string Nov 9,MakotoSakurai,Univ. Tokyo Horizon ThermodynamicsandEinsteinEquations Univ. ofPostsandTelecom. Nov 5,Rong-GenCai,Inst.Theo.Phys./Chongqing 3rd lecture: CyclicCosmologyand InfinitePast Nov 4,PaulFrampton,UNCandIPMU Brownian motioninAdS/CFT Nov 2,MasakiShigemori,Univ. Amsterdam supergravities Supersymmetric deformations,gauged Oct 27,Bernard deWit,Utrecht Univ. AdS_5xS5 resultsPerturbative gaugetheory from stringsin Oct 22,RomualdJanik,JagiellonianUniv. dispersion ofgalaxies A modelindependentmethodtomeasure velocity Oct 22,IsshaKayo,IPMU General GaugeMediationwithMessengers Oct 21,MattSudano,IPMU 2nd lecture: StudiesofT'FlavorSymmetry Oct 21,PaulFrampton,UNCandIPMU AdS/CFT Finite sizeeffectsinintegrablemodels:planar Oct 20,ZoltanBajnok,HungarianAcad.Sci.

65 Seminars 66 Seminars Interferometry Gravitational Wave DetectionwithAtom Dec 14,SurjeetRajendran,MIT Deformation quantizationand branes Dec 11,GiovanniFelder, ETHZurich Deformation quantizationandbranes Dec 10,GiovanniFelder, ETHZurich Oscillations Flavor Mixing,NeutrinoMassesand Dec 10,HaraldFritzsch,Univ. Muenchen Gaudin subalgebrasandstablerationalcurves Dec 8,GiovanniFelder, ETHZurich/IPMU Eenergy andDynamicalDark Modified Supersymmetry Dec 8,Sergey Ketov, Tokyo Met.Univ. Geometric quantizationonnoncompactmanifolds Dec 7,Weiping Zhang,ChernInst.Math.NankaiUniv. Holographic quantumliquidsin1+1d Dec 7,JanetHung,PerimeterInst. quantization Periodic cyclichomologyindeformation Dec 4,GiovanniFelder, ETHZurich Shaving theblackhole Dec 4,Yogesh Srivastava,IPMU Supersymmetry Discrete RSymmetriesandLowEnergy Dec 4,MichaelDine,UCSB scale structure Signature ofprimordial non-Gaussianity onlarge Dec 3,Tsz Yan Lam,IPMU hyperelliptic integrals System ofuniformizationequationsand Dec 1,Jiro Sekiguchi,Tokyo Univ.of Agri.andTech. Perturbation Theory Chiral Algebrasof(0,2)Models:Beyond Nov 30,JunyaYagi, RutgersUniv. Lagrangian submanifolds Microlocal conditionfornon-displaceabilityof Tamarkin,Nov 27,Dmitry NorthwesternUniv. Next-to-Leading Order JetPhysicswithBlackHat Nov 26,DavidKoswer, Saclay in p-pbarCollisions Scale, AxigluonasExplanationofTop Asymmetry 5th lecture: Conformalityfrom AdS/CFTatTeV Nov 25,PaulFrampton,UNCandIPMU T-duality, fieldtheory, andCourantbrackets Feb 11,BartonZwiebach,MIT Formalism Holography from theAdS_5xS^5Pure Spinor Feb 11,NathanBerkovits,Univ. SãoPaulo The NextGenerationX-raysatellite:ASTRO-H Feb 09,Aya Bamba,Dublin/JAXA superconductors Ten-fold classificationoftopologicalinsulatorsand UCBerkeley Feb 05,ShinseiRyu, CDMS II Neutrino ConstraintsonInelasticDarkMatterafter Feb 04,JingShu,IPMU the MSSM Implications ofCDMSIIresult onHiggssectorin Feb 04,MasatoYamanaka, ICRR Solving ComplexProjective Superspace Feb 02,Volker Schomerus,DESY Bases inthesolutionspaceofMellinsystem Feb 01,Timur Sadykov, SiberianFederalUniv. State Neutron StarsandtheDenseMatterEquationof Jan 28,JamesM.Lattimer, SUNY properties at0

67 Seminars 68 Seminars 8. LHC Focus Week: QCDinConnection withBSMStudyat November 10-13 Representation Theory Workshop: Quantizations,IntegrableSystemsand November 6 Focus Week: StatisticalFrontier ofAstrophysics September 28-October2 International Conference: DarkEnergy June 22-26 Focus Week: NewInvariantsandWall Crossing May 18-22 Focus Week: Non-GaussianitiesintheSky April 6-10 JFY2009

Conferences Dimensional LieAlgebra Workshop: ofLatticesandInfinite Geometry March 17-19 Energy Physics Focus Week: CondensedMatterPhysicsMeetsHigh 8-12 February Workshop: EllipticFibrationsandF-Theory 4-8 January Focus Week: Indirect DarkMatterSearch December 7-11 Focus Week: EpochofReionization November 30-December3 Workshop: RecentAdvancesinMathematicsatIPMU November 16-18

69 Conferences 70 Conferences 9. "Modeling theUniverse atLowandHighEnergies" Damien Easson (2009.04.16, London) Presented toTheRoyalSociety "Diversity ofCore-Collapse Supernovae" Ken'ichi Nomoto (2009.04.13 -2009.04.16,STScI,Baltimore) Seminar atSpaceTelescope ScienceInstitute "Non-Gaussianity asaprobe oftheearlyuniverse" Fuminobu Takahashi (2009.04.13 -2009.04.24,Kyoto) cosmological perturbations" GCOE internationalworkshop"Non-linear QCD withOrientifolds" Breaking"Dynamical Symmetry inHolographic Shigeki Sugimoto (2009.04.13 -2009.04.17,Argonne Nat'lLab,USA) Breaking"Symmetry Instituteworkshop"Dynamicsof Joint Theory Horava-Lifshitz gravitywithoutinflation" "Scale-invariant cosmologicalperturbationsfrom Shinji Mukohyama (2009.04.13 -2009.04.24,YITP, KyotoUniversity) Non-linear cosmologicalperturbations fundamental limit?" "Super-spinning blackholes:istheKerrbounda Cosimo Bambi (2009.04.10, Mitaka,Tokyo) Seminar atNAOJMitakaCampus Universe" "Searching fortheMicrophysics of theInflationary Damien Easson (2009.04.06, Geneva) Seminar atUniversityofGeneva ghost inflation" "Higgs phaseofgravityandnon-Gaussianityfrom Shinji Mukohyama "Non-Gaussianity asaprobe oftheearlyuniverse" Fuminobu Takahashi (2009.04.06 -2009.04.10,IPMU) IPMU Focusweekonnon-GaussianitiesintheSky physics" "PAMELA/ATIC cosmic-rayanomaliesandnew Fuminobu Takahashi (2009.04.01 -2009.04.03,UniversityofTokyo) search atLHC Co-WorkshopExperiment-Theory onnewphysics "The Microphysics Universe" oftheInflationary Damien Easson (2009.03.23 -2009.04.25,Arizona) Seminar atArizonaStateUniversity JFY2009 (including seminarsgivenatotherplaces)

Conference Talks Observations" vs. "The FinalFatesofMassiveStars: Theory Ken'ichi Nomoto Clusters" "LoCuSS: SubaruWeak LensStudyof30Galaxy Masahiro Takada (2009.05.18 -2009.05.21,KyotoUniversity) Joint Subaru/GeminiScienceConference ofSgrA*" observations "Testing theCarter-Israel Conjecture withfuture Cosimo Bambi (2009.05.15, Osaka) Seminar atOsakaCityUniversity ofSgrA*" observations "Testing theblackholeparadigmwithfuture Cosimo Bambi (2009.05.13, Osaka) Seminar atOsakaUniversity "Black holecandidatesandnewphysics" Cosimo Bambi (2009.05.08, Kanagawa,Japan) Colloquium atAoyamaGakuinUniversity "Subaru Weak LensStudyofLoCuSS Clusters" Masahiro Takada d'Astrophysique deMarseille(LAM),France) (2009.05.04 -2009.05.06,Laboratoire International Workshop: CosmoClusters "How canwetesttheCarter-Israel conjecture?" Cosimo Bambi (2009.04.27, Chiba,Japan) Seminar atChibaUniversity "Inflation andtheimplicationofnon-Gaussianity" Fuminobu Takahashi (2009.04.27) Seminar atChuoUniversity infrared surveys" "Future darkenergy experimentswithoptical/ Masahiro Takada (2009.04.23, NAOJ) DECIGO workshop "The Microphysics ofInflation" Damien Easson (2009.04.23, RESCEU,TheUniversityofTokyo) Seminar attheUniversityofTokyo progenitors" "Single degeneratemodelsforType Iasupernova Ken'ichi Nomoto (2009.04.17 -2009.04.18,PrincetonUniversity) Workshop onType IaSupernovaProgenitors

71 Conference Talks 72 Conference Talks "Dark MatterandColliderPhysics inSplit-UED'' Seong ChanPark (2009.06.05 -2009.06.10,Boston) the UnificationofFundamentalInteractions(SUSY09) 17th InternationalConference and onSupersymmetry "Cosmic-ray anomaliesanddarkmatter" Fuminobu Takahashi (2009.06.04, Tokyo) astrophysics group) Seminar atTheUniversityofTokyo (theoretical "Cosmic-ray anomaliesasaprobe ofdarkmatter" Fuminobu Takahashi (2009.06.02, Kyoto) Seminar atYITP "Properties inHologarphicQCD" ofBaryons Shigeki Sugimoto (2009.05.26, Tokyo) group) Seminar atTheUniversityofTokyo (hadron theory Present Universe" "Supernova NucleosynthesisintheEarlyand Keiichi Maeda (2009.05.25 -2009.05.30,Vulcano, Italy) High Energy CosmicSources Frascati Workshop 2009:Multi-frequency Behaviourof "Dark Matterasaprobe oftheearlyUniverse" Fuminobu Takahashi (2009.05.25 -2009.05.29,Padova,Italy) Planck 2009 spaces andconformalfieldtheory" "Homology oflocalsystemsonconfiguration Toshitake Kohno Sciences) (2009.05.25 -2009.05.29,ChineseAcademyof Beijing Program onAlgebraicTopology 2009 "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.05.25 -2009.05.30,JINR,Dubna) Frontiers inBlackHolePhysicsatDubna Horava-Lifshitz gravitywithoutinflation" "Scale-invariant cosmologicalperturbationsfrom Shinji Mukohyama (2009.05.20, Tokyo) Seminar atTokyo InstituteofTechnology signatures"observational "Super-spinning blackholes: motivationsand Cosimo Bambi (2009.05.19 -2009.05.21,Cleveland,USA) Workshop ontestsofgravityandgravitationalphysics "Topological MeltingRevisited" Strings andCrystal Hirosi Ooguri (2009.06.22 -2009.06.26,Rome) Strings 2009 "Is theCarter-Israel conjecture correct?" Cosimo Bambi (2009.06.21 -2009.06.26,Blois,France) XXI Rencontres de Blois: WindowsontheUniverse "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.06.18, Sendai) Seminar atTohoku University ofSgrA*" observations "Testing theblackholeparadigmwithfuture Cosimo Bambi (2009.06.17, Tsukuba) Seminar atTsukuba University space ofconformalblocks" "Local systemsonconfigurationspacesandthe Toshitake Kohno (2009.06.17 -2009.06.19,UniversityofParisVII) Conference Solstice "Einstein manifoldsandtriplesystems" Jose MiguelFigueroa-O'Farrill Sapienza", Rome) (2009.06.16 -2009.06.19,UniversityofRome"La inRome Kaehler andSasakigeometry "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.06.15, Tokyo) Seminar attheUniversityofTokyo "Black HolesandEmergent Geometry" Hirosi Ooguri (2009.06.10, UniversityofLeiden) Ehrenfest Colloquium observations" "Testing theblackholeparadigmwithfuture Cosimo Bambi (2009.06.09, Tokyo) Seminar atRikkyoUniversity "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.06.08 -2009.06.09,KEK) KEK miniworkshop "Topological StringTheory" Hirosi Ooguri (2009.06.06 -2009.06.19,GalileoGalileiInstitute) Summer SchoolonStringTheory "Unusual Supernovae" Ken'ichi Nomoto Garching, Germany) (2009.07.06 -2009.07.10,Max-Planck-Institute, MPA workshoponType Iasupernovae "Dark MatterandCosmic-rayanomalies" Fuminobu Takahashi (2009.07.06 -2009.07.11,YITP, Kyoto) andStringTheory Field Theory "M2-branes and3-algebras" Jose MiguelFigueroa-O'Farrill Poland) (2009.06.29 -2009.07.03,UniversityofWroclaw, XXV MaxBornsymposium:thePlanckscale "Holographic EntanglementEntropy" Tadashi Takayanagi (2009.06.29 -2009.07.24,KITP, UCSantaBarbara) Quantum CriticalityandtheAdS/CFTCorrespondence poor supernovae" "Formation andevolutionofdustinhydrogen- Takaya Nozawa (2009.06.29 -2009.07.03,NielsBohrInstitute) Current Problems inExtragalacticDust "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama "Higgs phaseofgravityandghostcondensate" Shinji Mukohyama (2009.06.29 -2009.07.03,Paris) Invisible Universe2009 "The GlobalEnvironment forResearch" Hirosi Ooguri (2009.06.28 -2009.06.30,Caltech,USA) Pacific RimUniversities Annual MeetingofPresidents oftheAssociation "Dark MatterandCosmic-rayanomalies" Fuminobu Takahashi (2009.06.24, Tokyo) Seminar atNihonUniversity "Hypernovae andTheirProgenitors" Keiichi Maeda Seoul) (2009.06.22 -2009.06.23,EwhaWoman's University, JEM-EUSO InternationalWorkshop "Progenitors ofType IaSupernovae" Ken'ichi Nomoto "Higgs phaseofgravityandghostcondensation" Shinji Mukohyama Clusters" "LoCuSS: SubaruWeak LensStudyof30Galaxy Masahiro Takada (2009.06.22 -2009.06.26,IPMU) up darkness!" IPMU internationalconference "darkenergy: lighting Application toCasA" "Formation anddestructionof dustinType IIbSN: Takaya Nozawa (2009.07.31, Heidelberg, Germany) Seminar atMPIA "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.07.22, Shizuoka,Japan) Seminar atShizuokaUniversity "Theoretical issues inweaklensing" Masahiro Takada (2009.07.20 -2009.07.24,SantaFe,USA) Santa Fe2009SummerCosmologyWorkshop Quantum HallEffect,andLifshitz-likeFixedPoints" "Holographic EntanglementEntropy, Fractional Tadashi Takayanagi Lexington, USA) (2009.07.20 -2009.07.25,UniversityofKentucky, andSymmetries6 Quantum Theory "O(N) andUSp(N)QCDfrom StringTheory" Shigeki Sugimoto (2009.07.20 -2009.07.31,POSTECH,Pohang) Gauge/string duality" APCTP FocusProgram "AspectsofHolographyand matter anddarkenergy" "Gravitational lensingofgalaxyclusters:dark Masahiro Takada (2009.07.16, Tokyo) Seminar atIoA,TheUniversityofTokyo "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.07.16, Tokyo) Seminar atTokyo Metropolitan University "Faint Supernovaefrom MassiveStars" Ken'ichi Nomoto (2009.07.13 -2009.07.17,Bonn,Germany) Fireworks workshop2009 matter anddarkenergy" "Gravitational lensingofgalaxyclusters:dark Masahiro Takada (2009.07.08, Tsukuba) Seminar atTsukuba University "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.07.07, Osaka) Seminar atOsakaUniversity "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama University) (2009.07.07 -2009.07.09,CQUeST, Sogang CQUeST FocusProgram onHoravagravity

73 Conference Talks 74 Conference Talks "Kaluza-Klein DarkMatter" Seong ChanPark (2009.09.03, KIAS,Korea) KIAS-KAIST-YITP workshop matter anddarkenergy" "Gravitational lensingofgalaxyclusters:dark Masahiro Takada (2009.09.02, NAOJ,Tokyo) Colloquium atAdvancedTechnology Center, NAOJ "Dark MatterandCosmic-rays" Fuminobu Takahashi (2009.09.02, KIAS,Korea) KIAS-KAIST-YITP workshop andQCD(I,II)" "String Theory Shigeki Sugimoto (2009.09.01 -2009.09.03,Copenhagen) GEOMAPS lecture atNielsBohrInstitute "Explosion Energies ofSupernovae" Ken'ichi Nomoto (2009.08.24 -2009.09.11,UCSantaBarbara) Plasmas KITP Workshop onParticleAccelerationinAstrophysical Constraints" "Single DegenerateIgnitionConditionsand Ken'ichi Nomoto (2009.08.17 -2009.08.21,UCSantaBarbara) KITP Conference onStellarDeathandSupernovae Hypernovae" "Nucleosynthesis oftheElementsinSupernovae/ Ken'ichi Nomoto (2009.08.10 -2009.08.14,RiodeJaneiro, Brazil) Universe: ConnectingFirstStarstoPlanets IAU Symposium265onChemicalAbundancesinthe Class" "Apery Sergey Galkin (2009.08.08 -2009.08.12,UniversityofVienna) HMS andHodgeTheory "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama "Dark MatterandCosmic-rays" Fuminobu Takahashi (2009.08.04 -2009.08.06,Fujiyoshida,Japan) Summer Institute2009 integrals" arrangements, localsystemhomologyanditerated "Topology ofthecomplementshyperplane Toshitake Kohno (2009.08.01 -2009.08.13,HokkaidoUniversity) The 2ndMSJ-SI"ArrangementsofHyperplanes" "Higgs phaseofgravity" Shinji Mukohyama (2009.09.28 -2009.09.30,Nagoya) Lecture seriesatNagoya University "Flavor Structure in F-theory" Taizan Watari Transition atZero Temperature" "Holographic Insulator/Superconductor Phase Tadashi Takayanagi (2009.09.28 -2009.11.01,YITP, KyotoUniversity) YITP workshop"Branes,StringsandBlackholes'' structure probes" "Non-Gaussian error properties oflarge-scale Masahiro Takada (2009.09.28 -2009.10.02,IPMU) Statistical Frontiers ofAstrophysics "Gravitational couplingsinDBIinflation" Damien Easson relativistic fixedpoints?" "Can wereally dualsofnon- havestringtheory Tadashi Takayanagi "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama "Kaluza-Klein DarkMatter" Seong ChanPark (2009.09.24 -2009.09.26,Daejeon,Korea) Energy andDarkMatter" andCosmology-QuantumGravityDark Theory NIMS-APCTP JointInternationalworkshop"String "Ghost condensateandblackhole" Shinji Mukohyama (2009.09.21 -2009.09.25,UniversityofMichigan) Shining LightonBlackHolesWorkshop "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.09.15, Waterloo, Canada) Seminar atPerimeterInstitute "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.09.14, CITA, Toronto) Seminar atUniversityofToronto "Gravitino Problem andrecent development" Fuminobu Takahashi (2009.09.13, KounanUniversity, Kobe,Japan) JSPS annualmeeting "Near-Infrared Frontiers ofSupernovaStudy" Keiichi Maeda Mitaka Campus) (2009.09.11, Inst.Astronomy, TheUniversityofTokyo, TAO-NIRCAM Workshop "Weak gravitationallensing" Masahiro Takada (2009.10.26 -2009.10.28,Nagoya) Lecture seriesatNagoyaUniversity ofSgrA*" observations "Testing theblackholeparadigmwithfuture Cosimo Bambi (2009.10.19 -2009.10.23,Shanghai,China) Galactic CenterWorkshop 2009 scale structure" "Signature ofprimordial non-Gaussianityonlarge Tsz Yan Lam (2009.10.16, Taiwan) Colloquium atNTHU "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.10.15, Hirosaki, Japan) Seminar atHirosaki University scale structure" "Signature ofprimordial non-Gaussianity onlarge Tsz Yan Lam (2009.10.15, Taiwan) Colloquium atASIAA "Gravitational lensingandHSCsurvey" Masahiro Takada (2009.10.14 -2009.10.16,Hakone,Japan) planets" DENET workshop"Darkuniverse:from cosmologyto Scale Structure" "Signature ofPrimordial Non-Gaussianity onLarge Tsz Yan Lam (2009.10.12, TheChineseUniversityofHongKong) Seminar atCUHK "Neutrino massandcosmology" Masahiro Takada (2009.10.09, Kashiwa,Japan) Seminar atICRR "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.09.29, Nagoya) Seminar atNagoyaUniversity "M2-branes, ADEandLiesuperalgebras" Jose MiguelFigueroa-O'Farrill (2009.09.28, Tokyo) Seminar atUniversityofTokyo "Dark matterandcosmic-rays" Fuminobu Takahashi (2009.09.28 -2009.10.02,Karuizawa,Japan) KEK school"GalaxyandDarkMatter" "Subaru Weak LensStudyof30GalaxyClusters" Masahiro Takada (2009.11.25 -2009.11.28,Hiraizumi, Japan) Environments -- Galaxy Build-UpAcross CosmicAgesand Japan-Korea Science Seminar2009(JSPS/KOSEF)-- Hypernovae" "Explosive NucleosynthesisinSupernovaeand Ken'ichi Nomoto Signatures"and Observational "Nucleosynthesis inType IaSupernovaExplosions Keiichi Maeda (2009.11.16 -2009.11.20,Kobe,Japan) VII Tours SymposiumonNuclearPhysicsandAstrophysics "Non-Gaussianity asaprobe oftheearlyUniverse" Fuminobu Takahashi development" andits "Affleck-Dine baryogenesis recent Fuminobu Takahashi "Dark matterandcosmic-rays" Fuminobu Takahashi (2009.11.10 ,NCTS,Taiwan) Seminars atNat'lCenterTheoSci point" "Cosmological implicationsofgravityataLifshitz Shinji Mukohyama (2009.11.08 -2009.11.10,PerimeterInstitute) Gravity ataLifshitzPoint "New gravitinoproblem" Fuminobu Takahashi (2009.11.06, Taiwan) Seminar atAcademiaSinica "Gravitinos from Inflatondecay" Fuminobu Takahashi (2009.11.06, Taiwan) Seminar atNationalTaiwan University prospects-" "Supersymmetric Cosmology-problems and Fuminobu Takahashi (2009.11.05, Taiwan) Seminar atNationalTaiwan University "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.10.28) Seminar atNihonUniversity "Neutrino massandcosmology" Masahiro Takada (2009.10.27, Nagoya) Seminar atNagoyaUniversity

75 Conference Talks 76 Conference Talks physics" "AdS/CFT anditsapplicationto condensedmatter Tadashi Takayanagi (2009.12.16 -2010.12.18,Sendai) Lecture SeriesatTohoku University "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2009.12.15 -2009.12.20,Miami) Miami 2009 D-module" "Invariants ofFanovarietiesviaquantum Sergey Galkin Sciences, UniversityofTokyo) (2009.12.14, GraduateSchoolofMathematical seminar Algebraic Geometry "Supernova Shockbreakouts" Nozomu Tominaga (2009.12.14, NCU,Taiwan) SUBARU HSCScienceonVariable andTransients physics" "AdS/CFT anditsapplicationtocondensedmatter Tadashi Takayanagi (2009.12.10 -2009.12.12,Tokyo) Lecture SeriesatRikkyoUniversity Thomas invariants" "On acomputationofranktwoDonaldson- Yukinobu Toda Mathematical Sciences,UniversityofTokyo) (2009.12.07 -2009.12.11,GraduateSchoolof Mirror andGromov-Witten Symmetry invariants parameter" valueoftheKerr Kerr spacetimeswitharbitrary "Numerical simulationsoftheaccretion process in Cosimo Bambi (2009.11.30 -2009.12.04,RikkyoUniversity, Tokyo) JGRG19 string" viathetopological "Real enumerativegeometry Daniel Krefl (2009.11.30 -2009.12.04,MSRI,Berkeley) Tropical Structures andPhysics inGeometry "Mirror fordelPezzosurfaces" Symmetry Sergey Galkin (2009.11.27, Tokyo) SeminaratTokyoGeometry Metropolitan University Transition atZero Temperature" "Holographic Insulator/Superconductor Phase Tadashi Takayanagi /Institut HenriPoincaréacute,Paris) (2009.11.26 -2009.11.27,EcoleNormaleSupérieure AdS/CFT: strongly coupledsystemsandexactresults "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2010.01.28 -2010.01.29,Busan,Korea) Inje Gravitation&NumericalRelativitymeeting "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama (2010.01.27, Kyoto) Seminar atKyotoUniversity "Extra DimensionsandtheCMB" Damien Easson State University) (2010.01.17 -2010.01.20,BeyondCenter, Arizona Open QuestionsinGravityWorkshop "Lecture 3"Cosmicshear" Masahiro Takada "Lecture 2"Clusterweaklensing" Masahiro Takada "Lecture 1"Weak gravitationallensingbasics" Masahiro Takada (2010.01.11 -2010.01.15,Cancun,Mexico) Essential CosmologyfortheNextGeneration its astrophysical implications" "Violation ofthecosmiccensorshipconjecture and Cosimo Bambi Tokyo) (2010.01.09 -2010.01.11,ShibauraInstofTech, 11th SingularityWorkshop "Mesons asOpenStrings" Shigeki Sugimoto (2010.01.05 -2010.01.06,RikkyoUniversity) Workshop onStringTheory "Aspects ofHorava-Lifshitzcosmology" Shinji Mukohyama Delhi) (2009.12.29 -2009.12.30,JamiaMilliaIslamia,New Cosmology 2nd Indo-JapanWorkshop onGravitation& and Infrared" Importance ofLate-Time inOptical Observations ofType"Explosion Geometry IaSupernovae: keiichi maeda (2009.12.22, NagoyaUniversity) 22nd Rironkon Symposium its astrophysical implications" "Violation ofthecosmiccensorshipconjecture and Cosimo Bambi (2009.12.18, RESCEU,TheUniversityofTokyo) Joint SeminarsonCosmologyandGravitation galaxies inzCOSMOS'' "Co-evolution ofSupermassiveBlackHolesand John Silverman (2010.02.14 -2010.02.20,Aspen) Workshop: Formationandevolution ofblackholes Astro-H" "Tackling SupernovaExplosionMechanismby Keiichi Maeda (2010.02.18 -2010.02.19,ISAS/JAXA) Nebulae inX-rays:before andafterASTRO-H Exploring SupernovaRemnantsandPulsarWind "An applicationofLifshitzfixedpointstoAdS/CFT" Tadashi Takayanagi "Recent topicsinholographicQCD" Shigeki Sugimoto (2010.02.18 -2010.02.20,Konosaki,Japan) andCosmology Superstring theory physics?" "What iscosmologytellingusaboutfundamental Shinji Mukohyama (2010.02.14 -2010.02.15,Hakuba,Japan) 16th ICEPPSymposium "Instability withChern-SimonsTerms" Hirosi Ooguri (2010.02.13 -2010.02.14,KomabaCampus,Tokyo) Komaba 2010 "Flavor Structure inF-theory" Taizan Watari (2010.02.12, MPIMunich) GUT's andStrings2010 review)" "Neutrino massesandcosmicsimulations(invited Masahiro Takada Washington, Seattle) (2010.02.08 -2010.02.11,InstforNuclTheo,U. Next Decade Astrophysical, andCosmologicalMeasurements inthe The Future ofNeutrinoMassMeasurements: Terrestrial, from StringTheory" "Entanglement Entropy andTopological Insulators Tadashi Takayanagi (2010.02.08 -2010.02.12,IPMU) High Energy Physics IPMU FocusWeek, CondensedMatterPhysicsMeets "Prokhorov-Hacking degenerationsinthemirror'' Sergey Galkin (2010.03.29 -2010.03.30,Edinburgh) Workshop onSubgroups ofCremona groups "Horava-Lifshitz gravity" Shinji Mukohyama (2010.03.28, Crete CenterofTheoPhys,Greece) Crete Workshop ontheFrontiers ofCosmology "Degenerations inthemirror'' Sergey Galkin (2010.03.25 ,Aberdeen) Seminar atUniversityofAberdeen "Insulators from StringTheory" Tadashi Takayanagi (2010.03.25, Cambridge,USA) Seminar atMIT Gaussianity" "Aspects ofHorava-Lifshitzcosmologyandnon- Shinji Mukohyama (2010.03.24 -2010.03.26,Kyoto) The non-Gaussianuniverse Mechanism" "Hunting forType IaSupernovaExplosion Keiichi Maeda (2010.03.16 -2010.03.17,Okinawa,Japan) Physics ofCompactObjects and Extremely FaintSupernovae" "Radiation Hydrodynamics ofExtremely Bright Ken'ichi Nomoto (2010.03.15 -2010.03.18,Caltech,Pasadena) Energy Astrophysics DensityLaboratory HEDLA 2010:8thInternationalConference onHigh Supernovae" "Nucleosynthesis inHypernovaeandFaint Ken'ichi Nomoto (2010.03.08 -2010.03.11,UniversityofTexas, Austin) Decade The FirstStarsandGalaxies:ChallengesfortheNext string theory" "Aspects oftheunorientedsectorintopological Daniel Krefl Honnef, Germany) (2010.03.08 -2010.03.11,PhysikzentrumBad XXII Workshop BeyondtheStandard Model

77 Conference Talks 78 Conference Talks 10. K. Yoshikawa, Tokyo (Japan),mathematics, 5/8-5/8 Y.B. Ruan,Michigan(USA),mathematics,5/6-5/13 M. Smy, (USA),neutrinophysics, 4/28-5/17 Irvine L. Uruchurtu,Cambridge(UK),stringtheory, 4/28-5/27 J. Wang, IHEP(China),cosmology, 4/26-4/30 4/25-4/29 T.E. Milanov, NorthCarolina State (USA),mathematics, T. Higaki, Tohoku (Japan),particletheory, 4/23-4/23 Y. Sekino,OIQP(Japan),stringtheory, 4/21-4/24 J.D. Silverman,ETH-Zurich(Swiss),astronomy, 4/20-4/24 4/25 F. Gmeiner, NIKHEF(Netherlands),stringtheory, 4/19- T. Suyama, Seoul(Korea), cosmology, 4/16-4/16 C. Grojean, CERN(Swiss),particletheory, 4/15-4/15 J. Hewett,SLAC(USA),particletheory, 4/13-4/15 9/30 M. Yamaguchi, Tohoku (Japan),particletheory, 4/13- U. Seljak,Zurich(Swiss),cosmology, 4/8-4/10 F. Bernardeau, CEA/Saclay(France),astronomy, 4/7-4/17 E. Kiritsis,Crete (Greece), cosmology, 4/6-4/10 H.W. (USA),neutrinophysics4/6-4/15 Sobel,Irvine A.E. Romano,YITP(Japan),cosmology, 4/6-4/10 4/6-4/10 E. Martinez-Gonzalez,IFCACantabria(Spain),cosmology, B. Barreiro, IFCACantabria(Spain),cosmology, 4/6-4/10 P. Vielva, IFCACantabria(Spain),cosmology, 4/6-4/10 A. Curto,Cantabria(Spain),cosmology, 4/6-4/10 G. Rossi,KIAS(Korea), cosmology, 4/6-4/10 F. Vernizzi, CEA/Saclay(France),cosmology, 4/6-4/10 J. Sievers,CITA (Canada),cosmology, 4/6-4/10 M. Nolta,CITA (Canada),cosmology, 4/6-4/10 N. Barnaby, CITA (Canada),cosmology, 4/6-4/10 Y. Watanabe, Texas (USA),cosmology, 4/6-4/10 R. Crittenden,Portsmouth(UK),cosmology, 4/6-4/10 Y.R. Garcia, UAN(Columbia),cosmology, 4/6-4/10 K. Kohri,Lancaster(UK),cosmology, 4/6-4/10 S. Yokoyama, Nagoya(Japan),cosmology, 4/6-4/10 T. Tanaka, YITP(Japan),cosmology, 4/6-4/10 T. Takahashi, Saga(Japan),cosmology, 4/6-4/10 M. Sasaki,Kyoto(Japan),cosmology, 4/6-4/10 A. Frolov, SimonFraser(Canada),cosmology, 4/6-4/10 D. Bond,CITA (Canada),cosmology, 4/6-4/10 B. Wandelt, Illinois(USA),astronomy, 4/6-4/10 L. Senatore, IAS(USA),particletheory, 4/6-4/10 E. Komatsu,Texas (USA),cosmology, 4/6-4/10 N. Dalal,CITA (Canada),astronomy, 4/6-4/10 F. Urban,UBC(Canada),cosmology, 3/31-4/2 W. Song,Inst.Theo.Phys.(China),particletheory, 3/30-4/3 H. Tye, Cornell(USA),particletheory, 3/30-4/3 R. Gregory, Durham(UK),stringtheory, 3/30-4/9 A. Bondal,Aberdeen (UK),mathematics,3/29-4/6 S. Petcov, SISSA(Italy),particletheory, 3/20-4/17 JFY2009

Visitors A. Nishizawa,Tohoku (Japan), astronomy, 6/22-6/26 6/26 K. Mizutani,Saitama/Waseda (Japan),astrophysics, 6/22- T. Shiromizu, Kyoto(Japan),stringtheory, 6/22-6/27 Y. Fujii,Waseda (Japan),astronomy, 6/21-6/25 M.S. Alam,Texas (USA),high energy physics,6/21-6/27 J. Jee,UCDavis(USA),astronomy, 6/21-6/27 S. Majumdar, TIFR(India),cosmology, 6/21-6/26 Ben-Gurion(Israel),cosmology,I. Gurwich, 6/21-6/27 L. Hui,Columbia(USA),cosmology, 6/21-6/25 M. Shoji,Texas (USA),cosmology, 6/21-6/27 6/26 S. Jhingan,JamiaMilliaIslamia(India),cosmology, 6/21- 6/26 K. Homma,Hiroshima (Japan), highenergy phys,6/21- E. Saridakis,Athens(Greece), cosmology, 6/21-6/27 L. Infante,UC(Chile),cosmology, 6/21-6/26 D. Clowe,Ohio(USA),astronomy, 6/21-6/26 S. Ho,LBL(USA),cosmology, 6/20-6/30 D. Eisenstein,Arizona(USA),astronomy, 6/17-6/25 D. Spergel, Princeton(USA),astrophysics, 6/12-6/30 G. Giribet,BuenosAires (Brazil),cosmology, 6/8-6/18 M. Cortes,Sussex(UK),cosmology, 6/4-6/13 UBC(Canada),highenergyD. Bryman, phys,6/4-6/5 E.T. Kearns,Boston(USA),neutrinophysics,6/3-6/8 B. Michel,Harvard (USA), particletheory, 6/1-8/15 K. Smith,Chicago(USA),cosmology, 6/1-6/8 U.L. Pen,CITA (Canada),astrophysics, 5/28-6/7 E.L. Turner, Princeton(USA),astrophysics, 5/26-6/11 5/22 S. Katsanevas,Paris(France),astroparticle phys,5/21- P. Binetruy, Paris(France),particletheory, 5/20-5/22 J. Yoo, Fermilab(USA),cosmology, 5/20-5/22 S. Naoz,Tel Aviv (Israel),cosmology, 5/18-5/22 5/18-5/31 L. Hollands,Amsterdam (Netherlands),mathematics, T. Dimofte,Caltech(USA),stringtheory, 5/18-5/22 A. Neitzke,Harvard (USA), stringtheory, 5/18-5/22 Y. Soibelman,Kansas(USA),mathematics,5/18-5/22 UBC(Canada),mathematics,5/18-5/22 J. Bryan, G. Mikhalkin,Geneve(Swiss),mathematics,5/18-5/22 B. Szendroi, Oxford (UK),mathematics,5/18-5/22 M. Cheng,Harvard (USA),mathematics,5/18-5/22 F. Denef,Harvard (USA),stringtheory, 5/18-5/22 D. Maulik,Columbia(USA),mathematics,5/18-5/22 5/22 A. Hanany, ImperialCollege(UK),stringtheory, 5/18- K. Fukaya,Kyoto(Japan),mathematics,5/18-5/22 5/22 H. Nakajima,KyotoRIMS(Japan),mathematics,5/18- A. Voronov, Minnesota(USA),mathematics,5/17-6/4 T. Suwa,Hokkaido(Japan),mathematics,5/15-5/15 A. Piepke,Alabama(USA),neutrinophysics,5/12-5/21 M. Yamazaki, Tokyo (Japan),stringtheory, 5/11-5/29

79 Visitors 80 Visitors R. Peccei,UCLA(USA),particletheory, 8/16-8/19 N. Reshetikhin,Berkeley(USA),mathematics,8/16-8/20 B. Feldstein,Boston(USA),particletheory, 8/16-8/31 K. Naoi,Tokyo (Japan),mathematics, 8/13-8/13 S. Maeda,Kyoto(Japan),cosmology, 8/11-8/12 N. Xi,ChineseAcad.Sci.(China),mathematics, 8/9-8/12 (USA),particletheory,H.S. Goh,Maryland 8/9-8/23 J. Ellis,CERN(Swiss),particletheory, 8/8-8/19 H. Yamaguchi, RIKEN(Japan),astronomy, 8/6-8/6 K. Ota,RIKEN(Japan),astronomy, 8/5-8/5 N. Dorey, Cambridge(UK),highenergy physics,8/5-8/7 T. Arakawa, Nara(Japan),mathematics,8/3-8/31 F.G. Malikov, USC(USA),mathematics,8/1-8/19 8/22 I. Low, Argon/Northwestern (USA),particletheory, 7/31- Y. Niinou,Kyoto(Japan),astrophysics, 7/23-7/24 7/22-7/26 B. Nienhuis,Amsterdam (Netherlands),particletheory, I. Runkel,King'sCollege(UK),stringtheory, 7/21-7/21 K. Ioka,KEK(Japan),particletheory, 7/15-7/15 7/17 M. Gaberdiel, ETH-Zurich(Swiss),mathematics,7/13- R. Nishio,Tokyo (Japan),particletheory, 7/13-7/15 M. Takeuchi, Tokyo ICRR(Japan),particletheory, 7/9-7/9 M. Verbitsky, ITEP(Russia),mathematics,7/8-9/4 N. Suzuki,Berkeley(USA),astrophysics, 7/7-7/11 K. Nagao,KyotoRIMS(Japan),mathematics,6/30-7/2 T. Ishibe,Hiroshima (Japan),mathematics,6/26-6/28 K.W. Ng,ASIAA(Taiwan), astrophysics, 6/24-7/2 C.S. Kim,Yonsei (Korea), particletheory, 6/23-8/31 J.A. Gu,NTU(Taiwan), cosmology, 6/23-6/26 6/27 L. Amendola,Astr.Obs.Rome (Italy),astronomy, 6/22- M. Turner, Chicago(USA),cosmology, 6/22-6/25 M. Sumiyoshi,Kyoto(Japan),astrophysics, 6/22-6/26 Y. Kamiya,Tokyo (Japan),astronomy, 6/22-6/26 6/22-6/26 M. Nakashima,Tokyo RESCEU(Japan),astrophysics, A. Taruya, Tokyo RESCEU(Japan),astrophysics, 6/22-6/26 T. Nishimichi,Tokyo (Japan),astronomy, 6/22-6/26 M. Kasai,Hirosaki (Japan),cosmology, 6/22-6/26 S. Saito,Tokyo (Japan),cosmology, 6/22-6/26 D. Jeong,Texas (USA),cosmology, 6/22-6/26 Y. Urakawa,Waseda (Japan),cosmology, 6/22-6/26 T. Chiba,Nihon(Japan),cosmology, 6/22-6/26 Y.C.M. Li,Tsing Hua(Taiwan), cosmology, 6/22-6/27 S. Tsujikawa, TUScience(Japan),cosmology, 6/22-6/26 T. Moriya,Tokyo (Japan),astronomy, 6/22-6/26 6/26 H. Motohashi,Tokyo RESCEU(Japan),cosmology, 6/22- T. Kobayashi,Waseda (Japan),cosmology, 6/22-6/26 H. Miyatake,Tokyo (Japan),cosmology, 6/22-6/26 K. Bamba,Tsing Hua(Taiwan), cosmology, 6/22-6/26 S. Ichinose,Shizuoka(Japan),particletheory, 6/22-6/26 D.H. Diaz,Madrid(Spain),studentexchange, 10/2-1/2 10/1-12/24 P.F. deMedeiros, Edinburgh (UK),mathematicalPhys, R. Shibata,Keio(Japan),mathematics,9/28-10/2 D.W. Hogg,NewYork U(USA),astronomy, 9/28-10/2 T.J. Loredo, Cornel(USA),astronomy, 9/27-10/3 D. Savransky, Princeton(USA),astronomy, 9/27-10/3 10/11 J. Frost, cambridge(UK),highenergy physics,9/27- P. Baines,Harvard (USA),mathematics,9/27-10/2 J. Winn,MIT(USA),astrophysics, 9/27-10/3 X.L. Meng,Harvard (USA),mathematics,9/27-10/1 D. Marinucci,Tor Vergata (Italy),mathematics,9/27-10/3 10/3 C.M. Schafer, CarnegieMellon(USA),mathematics, 9/27- J.A. Rice,Berkeley(USA),mathematics,9/27-10/3 10/3 D. Mortlock,Imperialcollege(UK),astrophysics, 9/27- H. Peiris,UnivCollege(UK),astrophysics, 9/26-10/3 I. Szapudi,Hawaii(USA),astronomy, 9/26-10/5 E.L. Turner, Princeton(USA),astrophysics, 9/24-0/10 9/30 C. Loomis,ApachePointObs.(USA),cosmology, 9/23- R. Lupton,Princeton(USA),cosmology, 9/23-9/30 M. Strauss,Princeton(USA),astrophysics, 9/23-9/30 H. Iritani,Kyushu(Japan),mathematics,9/17-9/19 P. Zograf,SteklovInst(Russia),mathematics,9/15-9/24 9/14 M. Hashimoto,W.Ontario (Canada),particletheory, 9/14- T. Ishibe,Hiroshima (Japan),mathematics,9/11-9/13 9/8 M. Hashimoto,W.Ontario (Canada), particletheory, 9/8- T. Oshima,Tokyo (Japan),mathematics,9/8-9/8 S. Freedman, Berkeley(USA),neutrinophysics,9/5-9/11 B. Webber, Cambridge(UK),particletheory, 9/1-9/30 M. Yamazaki, Tokyo (Japan),stringtheory, 8/31-9/3 8/28-8/28 P. Zinn-Justin,Pierre etMarieCurie(France),mathematics, D. Kawata,UnivCollege(UK),astronomy, 8/25-8/25 M. Yamazaki, Tokyo (Japan),stringtheory, 8/24-8/28 H.N. Li,Inst.Phys(Tanwan), particletheory, 8/24-8/25 M.S. Shin,Princeton(USA),astrophysics, 8/24-8/26 C.S. Park,Caltech(USA),stringtheory, 8/24-8/31 G. Grantcharov, (USA),mathematics,8/21-8/27 Maryland H. Ohta,Nagoya(Japan),mathematics,8/19-8/20 S. Kojima,Titech (Japan),mathematics,8/18-8/18 N. Kaifu,OpenU(Japan),astronomy, 8/18-8/18 M. Gonokami,Tokyo (Japan),quantumoptics,8/18-8/18 A. Bondal,Aberdeen (UK),mathematics,8/18-9/3 D. Ida,Gakushuin(Japan),cosmology, 8/17-8/21 8/17-8/19 Y.K. Kim,Chicago/Fermilab(USA),highenergy physics, S. Kahn,SLAC(USA),cosmology, 8/17-8/19 D.R. Morrison,UCSB(USA),mathematics,8/17-9/1 11/15 M. Schwartz,Harvard (USA),particletheory, 11/8- 11/14 G. Salam,Paris/CNRS(France),particletheory, 11/8- 11/14 D. Krohn, Princeton(USA),particletheory, 11/8- E.T. Kearns, Boston(USA),neutrinophys,11/7-11/17 A. Rosly, ITEP(Russia),mathematics,11/6-11/30 11/6 M. Guest,Tokyo Met.(Japan),mathematics,11/5- 11/5-11/6 D.H. Sternheimer, Bourgogne (France), mathematics, C. Olmos,Cordoba (Spain),mathematics, 11/5-11/6 H. Iritani,Kyushu(Japan),mathematics,11/5-11/6 mathematics, 11/5-11/6 G. Heckman,RadboudUNijmegen(Netherlands), R.G. Cai,Chongqing(China),cosmology, 11/5-11/5 M. Smy, (USA),neutrinophys,11/3-11/16 Irvine Y. Sekiya,Nagoya(Japan),mathematics,11/2-11/3 theory, 11/2-11/6 M. Shigemori,Amsterdam (Netherlands),string 11/2-2010/10/31 C. Schmidt-Colinet,ETH-Zurich(Swiss),stringtheory, 11/3 mathematics,11/1- S. Oppermann,NTNU(Norway), O. Iyama,Nagoya(Japan),mathematics,11/1-11/3 H. Minamoto,Kyoto(Japan),mathematics,11/1-11/3 P. Zograf,Steklov(Russia),mathematics,11/1-11/29 11/1 T. Ishibe,Hiroshima (Japan),mathematics,10/30- 11/18 I. Fleck,Siegen(Germany),particletheory, 10/22- 10/21 A. Nishizawa,Tohoku (Japan),astronomy, 10/19- 10/18-11/7 B.Q.P.J. deWit,Utrecht (Netherlands),atomicphys, 11/24 M. Pevzner, Reims(France),mathematics,10/17- 10/16 M. Kontsevich,IHES(France),mathematics,10/15- theory, 10/13-11/14 string Z. Bajnok,HungarianAcad.sci.(Hungary), Phys, 10/10-12/9 E. Mendez-Escobar, Edinburgh (UK),mathematical 10/25 S. Zheng,Zhejiang(China),stringtheory, 10/10- A. Bondal,Aberdeen (UK),mathematics,10/9-11/30 11/16 R. Janik,Jagiellonian(Poland),particletheory, 10/8- 10/10 S.R. Sanchez,DESY(Germany),particletheory, 10/4- M.H. Crocce, ICE(Spain),cosmology, 10/4-10/13 10/10 Y. Tachikawa, Princeton(USA),stringtheory, 10/3- G. Becker, Cambridge(UK),astrophysics, 11/29-12/5 T. Yamada, Tohoku (Japan), astronomy, 11/29-12/3 A. Coley, Dalhousie(Canada),mathematics, 11/29-12/13 B. Yue, Nat'lAstr. Obs. (China),astronomy, 11/29-12/3 X. Chen,Nat'lAstr. Obs. (China),astronomy, 11/29-12/6 I. Iliev, Sussex(UK),astronomy, 11/28-12/3 M. McQuinn,Berkeley(USA),astrophysics, 11/28-12/4 12/17 D. Tamarkin, Northwestern(USA),mathematics,11/27- A.E. Romano,Kyoto(Japan),cosmology, 11/24-11/25 J. Yagi, Rutgers(USA),particletheory, 11/24-11/24 C. Kobayashi,ANU(Australia),astronomy, 11/23-12/6 M. Minamitsuji,Sogang(Korea), cosmology, 11/23-11/28 12/6 D. Kosower, CEA-Saclay(France),particletheory, 11/22- J.M. Escude,Barcelona (Spain), astrophysics, 11/21-12/4 11/19 M. Drewes, Lausanne(Swiss),particletheory, 11/19- 11/18 Ingalls, C. N. Yuichi, Tohoku (Japan),mathematics,11/15-11/17 T. Ishibe,Hiroshima (Japan),mathematics,11/13-11/15 K. Scholberg, Duke(USA),neutrinophysics,11/11-11/16 12/2 P. Bressler, MaxPlanck(Germany),mathematics,11/11- J. Thaler, Berkeley(USA),particletheory, 11/10-11/13 11/10-11/12 N.J. Berkovits,EstadualPaulista(Brasil),stringtheory, C.W. Walter, Duke(USA),neutrinophysics,11/10-11/16 11/10-11/13 C.W. Chiang,Taiwan InstPhys(Taiwan), particletheory, H. Nishino,Nagoya(Japan),particletheory, 11/10-11/13 H. Nastase,Titech (Japan),particletheory, 11/10-11/10 K. Choi,KAIST(Korea), particletheory, 11/10-11/14 S. Asai,Tokyo (Japan),highenergy physics,11/10-11/13 C. Young, Kyoto(Japan),particletheory, 11/9-11/10 S. Lee,Weizmann Inst(Israel),particletheory, 11/9-11/14 C. Yu, Korea (Korea), particletheory, 11/9-11/16 R. Frederix, Zurich(Swiss),particletheory, 11/9-11/16 Q. Li,Karlsrue(Germany),particletheory, 11/9-11/14 H. Yokoya, CERN(Swiss),particletheory, 11/9-11/15 11/9-11/14 K. Mawatari,Heidelberg (Germany),particletheory, Z. Kunszt,ETH-Zurich(Swiss),particletheory, 11/9-11/14 I. Lewis,Wisconsin(USA),particletheory, 11/9-11/13 W.S. Cho,Seoul(Korea), particletheory, 11/9-11/14 J. Gallicchio,Harvard (USA),particletheory, 11/9-11/14 L. Dixon,SLAC(USA),particletheory, 11/9-11/13 theory, 11/9-11/15 R. Cavanaugh,Illinois-ChicagoCircle (USA),particle J. Alwall,SLAC(USA),particletheory, 11/9-11/14 T. Logvinenko,Liverpool(UK),mathematics,11/8-11/22 P. Fox,Fermilab(USA),particletheory, 11/8-11/14 G. Zanderighi,Oxford (UK),particletheory, 11/8-11/15 New Brunswick (Canada), mathematics, 11/17- mathematics, (Canada), Brunswick New

81 Visitors 82 Visitors 01/15 T. Pantev, Pennsylvania(USA),mathematics, 2010/01/02- 2010/1/9 R. Donagi,Pennsylvania(USA),mathematics, 12/25- R. Kitano,Tohoku (Japan), particletheory, 12/17-12/17 M. Gleiser, Dartmouth(USA),particletheory, 12/13-12/15 12/10 H. Fritzsch,Muenchen(Germany),particletheory, 12/10- S. Profumo, SantaCruz(USA),particletheory, 12/8-12/12 S. Ketov, Tokyo Met.(Japan),cosmology, 12/8-12/8 T. Jeltema, SantaCruz(USA),astronomy, 12/8-12/12 M. Hoshino,Tokyo (Japan),particletheory, 12/7-12/11 S. Torii, Waseda (Japan),particle theory, 12/7-12/8 M. Casolino,INFN(Italy),particletheory, 12/7-12/11 X.J. Bi,IHEP(China),particletheory, 12/6-12/12 A. Strumia,Pisa(Italy),particletheory, 12/6-12/13 12/11 O. Seto,Hokkai-Gakuen(Japan),particletheory, 12/6- L. Visinelli, Utah(USA),particletheory, 12/6-12/12 Y.G. Kim,KAIST(Korea), particletheory, 12/6-12/12 K. Hirotani, ASIAA(Taiwan), astrophysics, 12/6-12/12 C. Rott,OhioState(USA),astrophysics, 12/6-12/12 P. Gondolo,Utah(USA),cosmology, 12/6-12/12 P.D. Serpico,CERN(Swiss),astrophysics, 12/6-12/13 A. Ibarra,TUM(Germany),particletheory, 12/6-12/12 D. Hooper, Fermilab(USA),particletheory, 12/6-12/12 P. Mertsch,Edinburgh (UK),particletheory, 12/6-12/12 S. Rajendran,MIT(USA),particletheory, 12/6-12/15 P.F. Yin, Peking(China),astrophysics, 12/5-12/20 12/14 J. Hung,PerimeterInst(Canada),stringtheory, 12/5- Q. Yuan, IHEP(China),astrophysics, 12/5-12/20 A.E. Taklimi, IPM(Iran),particletheory, 12/4-12/13 C.W. Walter, Duke(USA),neutrinophysics,12/3-12/14 P. Hut,IAS(USA),astrophysics, 12/3-2010/1/18 G. Felder, ETH-Zurich(Swiss),mathematics,12/2-12/19 T. Ishibe,Hiroshima (Japan),mathematics,11/30-12/2 12/1 J. Sekiguchi,Tokyo A&T(Japan),mathematics,11/30- 12/3 V. Jelic,Groningen (Nethernlands),astrophysics, 11/30- L.J. Greenhill, Harvard (USA),astrophysics, 11/30-12/3 N. Kashikawa,NAOJ(Japan),astronomy, 11/30-12/2 J.H. Oh,Kentucky(USA),stringtheory, 11/30-12/22 S.R. Das,Kentucky(USA),stringtheory, 11/30-2010/3/3 K.W. Ng,ASIAA(Taiwan), astrophysics, 11/29-12/3 H. Tashiro, IAS(USA),cosmology, 11/29-12/3 U.L. Pen,CITA (Canada),astrophysics, 11/29-12/6 A. Lidz,Harvard (USA),astronomy, 11/29-12/3 11/29-12/3 L.V.E. Koopmans,Groningen (Netherlands),cosmology, 12/9 S. Zaroubi, G. Mellema,Stockholm(Sweden),astronomy, 11/29-12/3 Groningen (Netherlands),astrophysics, 11/29- M. Cheng,Harvard (USA),mathematics,02/07-02/12 P. Nag,TIFR(India),stringtheory, 02/07-02/13 S. Kim,Seoul(Korea), particletheory, 02/07-02/12 D. Hofman,Harvard (USA),stringtheory, 02/07-02/13 R. Meyer, Crete (Greece), stringtheory, 02/07-02/13 C. Keeler, Harvard (USA),cosmology, 02/07-02/13 02/12 A. Yarom, Princeton(USA),condensedmatter, 02/07- A. Kitaev, Caltech(USA),stringtheory, 02/07-02/13 E. Kiritsis,Crete (Greece), cosmology, 02/07-02/13 H. Liu,MIT(USA),stringtheory, 02/07-02/13 S. Minwalla,TIFR(India),stringtheory, 02/07-02/13 S. Kachru,KITP(USA),stringtheory, 02/07-02/12 D. T. Son, Washington (USA), particletheory, 02/07-02/11 N. Read,Yale (USA),appliedmath,02/07-02/13 02/07-02/13 S. Hartnoll,Harvard (USA), condensedmatterphys, 02/04 M. Yamanaka, Saitama(Japan),particletheory, 02/04- Berkeley(USA),condensedmatter,S. Ryu, 02/04-02/13 G. Smoot,Berkeley(USA),astrophysics, 02/03-03/01 M. Ooguri,KIPAC (USA),cosmology, 02/01-02/04 Y. Hikida,Keio(Japan),stringtheory, 02/01-02/13 02/19 V. Schomerus,DESY(Germany),stringtheory, 01/30- J. Lattimer, StonyBrook (USA),astronomy, 01/28-01/31 X. G.He,NTU(Taiwan), particletheory, 01/21-02/10 A. Bondal,Aberdeen (UK),mathematics,01/20-01/24 C. Loomis,Princeton(USA),cosmology, 01/16-01/29 S. Bickerton,Princeton(USA),cosmology, 01/16-01/29 E. Turner, Princeton(USA),astrophysics, 01/15-01/30 K. Nakazato,Kyoto(Japan),astronomy, 01/14-01/14 R. Lupton,Princeton(USA),cosmology, 01/12-01/23 T. Ishibe,Hiroshima (Japan),mathematics,01/10-01/12 M. Wolk, Paris6(France),cosmology, 01/10-02/26 D. Spolyar, Fermilab(USA),cosmology, 01/06-01/14 T. Kawano,Tokyo (Japan),mathematics,01/04-01/08 M. Saito,Kobe(Japan),mathematics,01/04-01/08 Y. Miyaoka,Tokyo (Japan),mathematics,01/04-01/08 T. Shioda,Rikkyo(Japan),mathematics,01/04-01/08 N. Nakayama,Kyoto(Japan),mathematics,01/04-01/08 J. H.Oh,Kentucky(USA),stringtheory, 01/04-01/12 J. Heckman,Princeton(USA),mathematics,01/03-01/09 C. Cordova, Harvard (USA),mathematics,01/03-01/11 S. Katz,Illinois(USA),mathematics,01/03-01/09 01/09 S. Schafer-Nameki, KITP(USA),mathematics,01/03- A. Bondal,Aberdeen (UK),mathematics,01/02-01/11 A. Grassi,Pennsylvania(USA),mathematics,01/02-01/09 01/10 J. Marsano,EnricoFermiInst.(USA),mathematics,01/02- 01/09 D. Morrison,SantaBarbara(USA),mathematics,01/02- 02/26-03/06 C. Kobayashi,AustralianNatlU(Australia),astronomy, 02/28 X. F. Wang, Tsinghwa (China),particle theory, 02/25- 02/23 E. Lupercio, Cinvestav(Mexico),mathematics,02/23- D. Wands, Portsmouth(UK),cosmology, 02/23-02/26 K. Ichiki,Nagoya(Japan),cosmology, 02/22-02/24 T. Kugo,Kyoto(Japan),particletheory, 02/22-03/31 02/17 T. Okuda,PerimeterInst(Canada),stringtheory, 02/14- R. Budney, Victoria (Canada),mathematics,02/13-02/21 02/21 B. Burton,Queensland(Australia),mathematics,02/13- T. Ishibe,Hiroshima (Japan),mathematics,02/12-02/14 02/12 N. Berkovits,SãoPaulo(Brazil),stringtheory, 02/10- B. Zwiebach,MIT(USA),stringtheory, 02/10-02/12 A. Bamba,JAXA(Japan),astronomy, 02/09-02/09 02/10 S. Zhang,Stanford (USA),condensedmatter, J. Trump, Arizona(USA),astronomy, 02/08-02/09 02/11 S. Fujimoto,Kyoto(Japan),condensedmatter, 02/08- 02/13 E. Fradkin,Illinois(USA),mathematicalphys,02/08- X. G.Wen, MIT(USA),condensedmatter, 02/08-02/12 D. K.Hong,Pusan(Korea), particletheory, 02/07-02/13 P. Koroteev, Minnesota(USA),cosmology, 02/07-02/12 02/12 A. Garcia-Garcia, Lisbon(Portugal),stringtheory, 02/07- F. L.Lin,NTNU(Taiwan), stringtheory, 02/07-02/12 02/07-02/12 H. C.Kao,Natl.Taiwan NormalU(Taiwan), stringtheory, theory, 02/07-02/12 I. Fialkovskiy, St.Petersburg StateU(Russia),particle 02/09- 03/28-04/02 M. Ratz,Tech UMunich(Germany),particletheory, 06/25 T. O'Donnell,Berkeley(USA),neutrinophysics,03/27- C. Beil,SantaBarbara(USA),mathematics,03/24-06/18 03/18 J. Sekiguchi,Tokyo A&T(Japan),mathematics,03/18- 03/17-03/17 D. Sternheimer, Bourgogne (France),mathematics, 03/19 H. Aoki,Tokyo UofSci.(Japan),mathematics,03/17- S. Kondo,Nagoya(Japan),mathematics,03/17-03/19 T. Ishibe,Hiroshima (Japan),mathematics,03/16-03/19 J. Stoppa,Cambridge(UK),mathematics,03/15-03/16 03/15-03/15 A. J.Leggett,Illinois(USA),condensedmattertheory, 03/15-05/15 Z. Kunszt,ETHZurich(Switzerland),particletheory, 03/13-03/18 N. Scheithauer, DarmstadtTech (Germany),mathematics, N. Kawakatu,NAOJ(Japan),astronomy, 03/11-03/11 S. Petcov, SISSA(Italy),particletheory, 03/10-04/13 04/15 B. Venkov, SteklovInst(Russia),mathematics,03/08- L. Verde, Barcelona (Spain),astronomy, 03/08-03/29 R. Jimenez,Barcelona (Spain),astronomy, 03/08-03/29 R. Suzuki,Cambridge(UK)),stringtheory, 03/08-03/10 05/08 C. Weniger, DESY(Germany),particletheory, 03/07- J. Schmidt,DESY(Germany),particletheory, 03/07-05/08 T. Ishibe,Hiroshima (Japan),mathematics,03/04-03/07 B. Carr, QMUL(UK),cosmology, 03/04-03/04 J. Fonseca,Portsmouth(UK),cosmology, 03/02-03/02 T. Okamoto,Tsukuba (Japan),cosmology, 03/01-03/03 R. Penner, southernCal(USA),mathematics,02/28-03/06

83 Visitors 84 Visitors 11. M IPMU09-0015 Advanced StudiesinPure Mathematics50,101(2008), Kyoji Saito, Algebras, Towards aCategoricalConstructionofLie Phys. Rev. C77,035806(2008),IPMU07-0006 Kenji Yasuoka, Toshikazu Ebisuzaki, Hidetaka Sonoda,Gentaro Watanabe, KatsuhikoSato, uncertainties insupernovacores, Phase diagramofnuclear``pasta''andits MNRAS 383,1485(2008) Soderberg, A.,andZampieri,L., Poznanski, D.,Salvo,M.,Sauer, D.N.,Schmidt,B.P., T., Nomoto,K.,Ofek,E.O.,Ohyama,Y., Pian,E., K., Kirshner, R.P., Li, W., Lipkin,Y. M.,Matheson, P., Frontera, F., Harutyunyan,A.,Iye,M.,Kawabata, Foley, R.J.,Filippenko,A.V., Pastorello, A.,Challis, P., Turatto, M.,Hurley, K.,Maeda,Gal-Yam, A., Valenti, S.,Benetti,Cappellaro, E.,Patat,F., Mazzali, The broad-lined Type Icsupernova2003jd, Science 319,1220(2008),IPMU08-003 Ohyama, Toshiyuki Sasaki,Tadafumi Takata, V. Filippenko,Kentaro Aoki,George Kosugi,Youichi Taubenberger, MasanoriIye,ThomasMatheson,Alexei Takashi Hattori,JinsongDeng,ElenaPian,Stefan Masaomi Tanaka, StefanoValenti, Ken'ichiNomoto, Keiichi Maeda,KojiKawabata,PaoloA.Mazzali, Time Spectroscopy, Asphericity inSupernovaExplosionsfrom Late- Astrophys. J.673,1014(2008) Umeda, H.andNomoto,K., Astrophys. J.677,448(2008),IPMU07-0018 Hachinger, Giuliano Pignata,Vallery Stanishev, Stephan Ken'ichi Nomoto,NancyElias-Rosa, RubinaKotak, Masaomi Tanaka, PaoloA.Mazzali,StefanoBenetti, The OutermostEjectaofType IaSupernovae, JFY2008 How Much Astrophys. J.672,1068(2008) Kuroda, T., Wanajo, S.,andNomoto,K., Winds: TheRoleoftheWindTermination Shock, The r-Process inSupersonicNeutrino-driven Astrophys. J.672,1043(2008),IPMU07-0009 Nomoto, Takashi Yoshida, HideyukiUmeda,andKen'ichi Collapse Supernovae, nu-Process NucleosynthesisinPopulationIIICore- JFY2007 Supernovae? EvolutionandExplosionsof30–100 ○・

Stars, 56 Ni CanBeProduced inCore-Collapse

Publications JHEP 06,035(2008),IPMU08-0006 Kiyotomo Kawagoe, Mihoko M.Nojiri,Yasuhiro Shimizu,ShogoOkada, gluino massdetermination, Inclusive transversemassanalysisforsquarkand Astrophys. J.679, 1390 (2008),IPMU07-0010 Izumi Hachisu,MarikoKato,andKen'ichiNomoto, Supernovae andTheirCircumstellar Matter, Young Progenitors andMassive Binary ofType Ia JCAP 06,024(2008),IPMU08-0123 Saito,Jun'ichiYokoyama,Ryo Nagata, Ryo primordial blackhole formation, superhorizon fluctuations,andnon-Gaussianityin Single-field inflation,anomalousenhancementof JHEP 05,089(2008),IPMU08-0016 Takayanagi, Tomoyoshi Hirata,ShinjiMukohyamaandTadashi Decaying D-branesandMovingMirrors, Phys. Rev. D77,103009(2008),IPMU08-0119 Tavakol, Jun'ichiYokoyama, Shinji Tsujikawa, KotubUddin, Shuntaro Mizuno,Reza from andlocalgravitytests, observational Constraints onscalar-tensor modelsofdarkenergy Astrophys. J.679,732(2008),IPMU08-0005 Nomoto, Nozomu Tominaga, HideyukiUmeda,andKen'ichi Israelian, AlexeiV. Chornock, Filippenko,Ryan Jonay I.GonzalezHernandez,RafaelRebolo,Garik XTEJ1118+480, Black HoleX-rayBinary Starinthe Chemical AbundancesoftheSecondary Phys. Lett.B663,86(2008),IPMU07-0015 K. Hamaguchi,S.Shirai,andT.T. Yanagida, LHC, Determining themassofaultra-lightgravitinoat JCAP 06,020(2008),IPMU08-0122 Yokoyama, Kazunori Nakayama,ShunSaito,Yudai Suwa,Jun'ichi with gravitationalwavebackground, Probing reheating temperature oftheuniverse JHEP 05,014(2008),IPMU07-0008 Mihoko M.Nojiri,GiacomoPolesello,DanielR.Tovey, decays, masses attheLHCwithfullyidentifiedcascade A hybridmethodfordeterminingSUSYparticle Phys. Lett.B663,281(2008),IPMU07-0001 Yu Nakayama,M.Yamazaki, T. T. Yanagida, Moduli stabilizationinstringyISSmodels,

85 Publications 86 Publications Phys. Rev. D77,113017(2008), IPMU08-0017 Klemm, andHitoshiMurayama, Matthew R.Buckley, BeateHeinemann,William LEP-II andTevatron, Quantum Interference EffectsAmongHelicities at Astrophys. J.687,1208(2008),IPMU07-0012 Gurugubelli, T.P. Prabhu,andJ.Deng, K. S.Kawabata,G.C.Anupama,D.K.Sahu,U.K. Tanabe, H.Kaneda,T. Onaka,T. Nozawa,T. Kozasa, Minezaki, Y. Yoshii, I.Sakon,T. Wada, Y. Ohyama,T. K. Nomoto,Maeda,A.Chieffi, Tornambe, T. N. Tominaga, M.Limongi,T. Suzuki,M.Tanaka, Wolf-Rayet StarExplosion, The PeculiarType IbSupernova2006jc:AWCO Nucl. Phys.B798,17(2008),IPMU07-0003 Chang-Soon Park, Joseph Marsano,Hirosi Ooguri,Yutaka Ookouchi, Normal Coordinates, Theories, Part2:Fayet-IliopoulosTerms andKahler Metastable Vacua inPerturbedSeiberg-Witten 743 (2008),IPMU08-0031 andPhysics2, Communications inNumberTheory Keller, Gregory W. Moore, andHirosi Ooguri, Matthias R.Gaberdiel, Sergei Gukov, ChristophA. Constraints ofModularity, Extremal C=(2,2)2DConformalFieldTheoriesand Phys. Lett.B665,237(2008),IPMU08-0021 Yanagida, Junji Hisano,MinoruNagai,ShoheiSugiyama,andT. T. Mediation ModelwithLightGravitino, Upperbound onSquarkMassesinGauge- Phys. Rev. D77,124028(2008),IPMU07-0016 Keitaro Takahashi, KiyotomoIchiki,NaoshiSugiyama, Electromagnetic Properties ofthe Early Universe, Phys. Rev. D77,123009(2008),IPMU09-0155 Mukherjee, Alexander Kusenko,BhabaniPrasadMandal,Alok neutrinos, Delayed pulsarkicksfrom theemissionofsterile Phys. Lett.B664,185(2008),IPMU08-0009 Shoji Asai,Takeo Moroi, T.T. Yanagida, Test ofAnomalyMediationattheLHC, Phys. Lett.B664,194(2008),IPMU08-0011 Yonekura, Fuminobu Takahashi, T.T. Yanagida, andKazuya Mass, Gravitational Waves asaProbe oftheGravitino Astrophys. J.680,580(2008),IPMU07-0011 Nomoto, andPaoloA.Mazzali, Kawabata, KeiichiMaeda,NozomuTominaga, Ken'ichi D.K. Sahu,MasaomiTanaka, G.C.Anupama,KojiS. SN 2005hkover400days, The evolutionofthepeculiarType Iasupernova Astrophys. J.685,553(2008),IPMU09-0073 Yue ShenandEdwinL.Turner, from RadialVelocity Surveys, On theEccentricityDistribution ofExoplanets Commun. Math.Phys.286,875 (2009),IPMU08-0001 H. Boos,M.Jimbo,T. Miwa,F. Smirnov, Y. Takeyama, Creation Operators, Hidden GrassmannStructure inXXZModelII: Astrophys. J.Lett. 685, L117(2008),IPMU08-0047 Turatto, S.D.Van Dyk,andL.Zampieri, Nomoto, E.O.Ofek,J.Simon,T. Small,G.P. Smith,M. Li, D.Maoz,T. Matheson,P.A. Mazzali, M. Modjaz,K. R.J. Foley, D.B.Fox,R.P. Kirshner, D.C.Leonard, W. E. Cappellaro, P.J. Challis,R.S.Ellis,A.V. Filippenko, A. Gal-Yam, F. Bufano,T. Barlow, E.Baron, S.Benetti, spectral uniformityamongtypeII-Psupernovae, GALEX Spectroscopy ofSN2005aysuggestsaUV Astrophys. J.684,1343(2008),IPMU08-0004 Marco Limongi,Takashi Onaka, Ken'ichi Nomoto,KeiichiMaeda,HideyukiUmeda, Itsuki Sakon,MasaomiTanaka, Tomoharu Suzuki, Takaya Nozawa,Takashi Kozasa,NozomuTominaga, SN 2006jcandTemperature andMassoftheDust, Early FormationofDustintheEjectaType Ib Phys. Lett.B666,57(2008),IPMU08-0029 Koichi Hamaguchi,EitaNakamura,SatoshiShirai, Light GravitinoScenarios, A Measurement ofNeutralinoMassattheLHCin Astrophys. J.Lett.683,L127(2008),IPMU08-0043 Izumi Hachisu,MarikoKato,andKen'ichiNomoto, and theSingleDegenerateModel, The DelayTime DistributionofType IaSupernovae Phys. Rev. D78,043527(2008),IPMU08-0121 Nemanja Kaloper, Lorenzo Sorbo,Jun'ichiYokoyama, Inflation attheGUTscaleinaHiggslessuniverse, Nucl. Phys.B806,224(2008),IPMU08-0024 Watari, andMasahitoYamazaki, Hirotaka Hayashi,RaduTatar, Yukinobu Toda, Taizan New AspectsofHeterotic-F Duality, Theory Phys. Rev. D78,032002(2008) The Super-Kamiokande Collaboration, Kamiokande-II, Solar neutrinomeasurements inSuper- Phys. Rev. D78,043502(2008),IPMU08-0120 Kohei Kamada,Jun'ichiYokoyama, directions, Affleck Dineleptogenesisviamultipleflat Phys. Rev. D78,014028(2008),IPMU07-0002 Klemm,Vikram Rentala, Matthew R.Buckley, HitoshiMurayama,William Discriminating spinthrough quantuminterference, 0037 Proc. JapanAcad.Ser. A,84,179-183 (2008),IPMU08- Kyoji Saito, of finitetype, Growth functions associatedwithArtinmonoids Phys. Rev. D78,075014(2008),IPMU09-0152 Ian M.Shoemaker, AlexanderKusenko, supersymmetric models, The ground Q-ballsin states ofbaryoleptonic MNRAS 389,1675(2008) Takahashi,Ryuichi NaokiYoshida, etal. Growth ofLarge-Scale DensityFluctuations, AccousticOsccilationsI: Simulations ofBaryon Phys. Rev. D78,075003(2008),IPMU08-0053 Kazuya Yonekura, Satoshi Shirai,FuminobuTakahashi, T. T. Yanagida and Breaking, Gauge MediationwithSequestered Supersymmetry Science 321,1185(2008),IPMU08-0049 Carrie Trundle, MassimoTuratto, Tanaka, StefanTaubenberger, NozomuTominaga, Sari, StephenSmartt,Gianpiero Tagliaferri, Masaomi Pastorello, NinoPanagia,Leonardo J. Pellizza,Re'em Navasardyan, Ken'ichiNomoto,ElianaPalazzi,Andrea Marziani, NicolaMasetti,FelixMirabel,Hripsime Hunter, KateMaguire, ElisabettaMaiorano,Paola Fiore, DinoFugazza,RobertoGilmozzi,Deborah Cappellaro, StefanoCovino,PaoloD'Avanzo, Fabrizio Antonelli, FilomenaBufano,Sergio Campana,Enrico Rosa, RaffaellaMargutti, FrancescoPasotti,L.Angelo Elena Pian,Tsvi Piran,Valerio D'Elia,NancyElias- Guido Chincarini,DanielN.Sauer, StefanoBenetti, Paolo A.Mazzali,StefanoValenti, MassimoDellaValle, GRBs/Hypernovae, XRF080109: alinkbetweenSupernovaeand The metamorphosisofSupernovaSN2008D/ Astrophys J.685,1089(2008) Umeda, H.,andNomoto,K., Hayakawa, T., Iwamoto,N.,Kajino,T., Shizuma,T., Collapse Supernovae, Implications fortheGammaProcess inCore- Empirical AbundanceScalingLawsand JCAP 10,017(2008),IPMU08-0032 Takahash, Shinta Kasuya,Masahiro KawasakiandFuminobu mechanism andconstraintsoninflation, Isocurvature fluctuationsinAffleck-Dine JCAP 09,007(2008),IPMU08-0015 Teruaki SuyamaandFuminobuTakahashi, Non-Gaussianity from Symmetry, JHEP 12,065(2008),IPMU08-0080 Tadashi Takayanagi, Mitsutoshi Fujita,Yasuaki and Hikida,Shinsei Ryu CFT, Disordered SystemsandReplicaMethodinAdS/ Prog. Theo.Phys.120, 1093(2008),IPMU08-0027 Sugimoto, Koji Hashimoto,Tadakatsu Sasaki,andShigeki Factors from Gauge/String Duality, StaticPropertiesHolographic Baryons: andForm Prog. Theor. Phys.120,1207(2008),IPMU08-0125 Masahiro Nagata,Jun'ichiYokoyama, Nakashima, Ryo structure constant bythe5-yearWMAPdata, Constraints onthetimevariationoffine Astrophys. J.689,1191(2008),IPMU08-0045 Takashi Hattori,andKen'ichiNomoto, Masaomi Tanaka, KojiS.Kawabata,KeiichiMaeda, Ic SN2007gr, Optical Spectropolarimetry andAsphericityofType Phys. Rev. D78,123002(2008),IPMU08-0124 Nagata,Jun'ichiYokoyama,Ryo decorrelation analysis, the cosmicinversionmethodwithband-power spectrum from thefive-yearWMAPdataby Reconstruction oftheprimordial fluctuation Nature 456,617(2008),IPMU08-0108 Ken'ichi Nomoto, Takashi Hattori,MiwaGoto,StephanBirkmann, Oliver Krause,MasaomiTanaka, Tomonori Usuda, Ia explosionrevealed from itslight echospectrum, Tycho Brahe's1572Supernovaasastandard type Astrophys. J.685,1382(2008) Tominaga, N.,Umeda,H.,andNomoto,K., Takigawa, A.,Miki,J.,Tachibana, S.,Huss,G.R., Mixing Fallback, Early SolarSystemfrom aFaintSupernovawith Injection ofShort-LivedRadionuclidesintothe JCAP 11,019(2008),IPMU08-0050 Sekiguchi, Teruaki Suyama,FuminobuTakahashi, Masahiro Kawasaki,KazunoriNakayama,Toyokazu Non-Gaussianity from isocurvature perturbations, JHEP 0810,025(2008),IPMU08-0010 Mihoko M.Nojiri,MichihisaTakeuchi, events attheLHC, Study ofthetopreconstruction intop-partner JHEP 0810,100(2008),IPMU-08-0051 Michihisa Takeuchi, Mihoko M.Nojiri,KazukiSakurai,Yasuhiro Shimizu, inclusive m(T2), Handling jets+missingE(T)channelusing

87 Publications 88 Publications Phys. Lett.B670,434(2009),IPMU08-0085 Kazunori Nakayama,Fuminobu Takahashi, Effects, Cosmological ModuliProblem from Thermal JCAP 0901,013(2009),IPMU08-0056 Yu-ichi Takamizu andShinjiMukohyama, canonical scalarfield, Nonlinear superhorizonperturbationsofnon- Phys. Rev. Lett.102,031601(2009),IPMU08-0055 Nakamura, Kin-yaOda, Shunichiro Kinoshita, ShinjiMukohyama,Shin Temperature System, DualforaTime-DependentField-Theory Finite Consistent Anti-deSitter-Space/Conformal- Phys. Rev. D79,023520(2009),IPMU08-0083 Kiyotomo Ichiki,Masahiro Takada, Tomo Takahashi, Lensing, Constraints onNeutrinoMassesfrom Weak Phys. Rev. D79,025010(2009),IPMU08-0076 Lawrence J.Hall,MichaelP. SalemandTaizan Watari, landscapes, Neutrino mixingandmasshierarchy inGaussian Astrophys. J.690,913(2009),IPMU08-0099 Katsuhiko Sato, Yudai Suwa,Tomoya Takiwaki, KeiKotake,and Neutrino Background from Population IIIStars, Impact ofRotationonNeutrinoEmissionandRelic Arch. Math.92,No.1,80-88(2009),IPMU08-0079 Shin-ichi OhtaandMikaelPichot, A noteonMarkovtypeconstants, Astroparticle Physics30,306(2009),IPMU08-0101 Hajime Takami andKatsuhikoSato, Cosmic Raysfrom theirArrivalDistribution, Implications toSources ofUltra-high-energy Astrophys. J.690,1745-1752(2009),IPMU08-0073 Nomoto, AlexV. Filippenko, Tanaka, PaoloA.Mazzali,Takashi Hattori,Ken'ichi Keiichi Maeda,KojiKawabata,Weidong Li,Masaomi Type IaSupernova2006gzatLatePhases, ofthePeculiar Subaru andKeckObservations Astrophys. J.690,526(2009),IPMU07-0014 Nozomu Tominaga, Nucleosynthesis inJet-inducedSupernovae, Aspherical Properties ofHydrodynamics and MNRAS 392,894(2009),IPMU08-0111 Prabhu, N.Tominaga, M.Tanaka, K.Nomoto, G. C.Anupama,D.K.Sahu,U.Gurugubelli,T. P. formation, Ibn supernovaSN2006jcuntiltheonsetofdust andspectroscopyOptical photometry ofthetype Nucl. Phys.B808,121-136(2009), IPMU08-0038 and JaewonPark, Hirosi Ooguri,Yutaka Ookouchi,Chang-SoonPark, Current Correlators forGeneralGaugeMediation, Astrophys. J.692,546-555(2009),IPMU07-0013 Nakagawa, andH.Murakami, Minezaki, Y. Yoshii, S.Ohyabu,F. Usui,H.Matsuhara,T. Suzuki, H.Umeda,K.Nomoto,T. Nozawa,T. Kozasa,T. H. Kaneda,T. Onaka,N.Tominaga, M.Tanaka, T. I. Sakon,T. Wada, Y. Ohyama,D.Ishihara,T. Tanabe, AKARI, based onnear-to-mid infrared with observation Properties ofnewly formeddustbySN2006jc Phys. Rev. D79,043002(2009),IPMU08-0095 Cosimo BambiandKatherineFreese, Apparent shapeof super-spinning black holes, JCAP 01,042(2009),IPMU08-0069 Sekiguchi, Teruaki Suyama,FuminobuTakahashi, Masahiro Kawasaki,KazunoriNakayama,Toyokazu Isocurvature Perturbations, A GeneralAnalysisofNon-Gaussianityfrom JCAP 01,026(2009),IPMU08-0072 Takahashi, Masahiro Kawasaki,KazunoriNakayama,Fuminobu Hilltop Non-Gaussianity, JCAP 01,002(2009),IPMU08-0061 Takahashi, Masahiro Kawasaki,KazunoriNakayama,Fuminobu Non-Gaussianity from Asymmetry, Baryon Astropart. Phys.31,201(2009) Katsuhiko Sato, Hajime Takami, KohtaMurase,Shigehiro Nagataki, from Galactictoextragalacticcosmicrays, Cosmogenic neutrinosasaprobe ofthetransition Astrophys J.Lett.690,L14(2009) Kohta Murase,HajimeTakami, Transient Sources intheAugerEra, Implications toUltra-highenergy cosmicraysfor Phys. Rev. D79,014034(2009),IPMU08-0068 Zongguo SiandKaiWang, GeV MajoranaNeutrinosinTop DecayattheLHC, Astrophys J.691,621(2009) Umeda, H., Liebmann, A.C.,Takatsuka, T., Nomoto,K.,and Tsuruta, S.,Sadino,J.,Kobelski,A.,Teter, M.A., Stars, Thermal EvolutionofHyperon-Mixed Neutron Phys. Lett.B671,71(2009),IPMU08-0058 Chuan-Ren Chen,FuminobuTakahashi, T. T. Yanagida, hidden gaugeboson, Gamma raysandpositrons from adecaying Eur. Phys.J. C61,93-109(2009),IPMU08-0013 E. Molinaro, S.T. Petcov Energy CP-Violation inLeptogenesis, The InterplayBetweenthe"Low" and"High" Nucl. Phys.B810,316(2009),IPMU08-0035 Radu Tatar andTaizan Watari, Compactifications, GUT Relationsfrom StringTheory Phys. Rev. D79,055024(2009),IPMU08-0091 Musolf, KaiWang, Pavel FileviezPerez, Hiren Patel,MichaelRamsey- Triplet ScalarsandDarkMatterattheLHC, Phys. Rev. D79,054002(2009),IPMU08-0084 Kai Wang, Chuan-ren Chen,WilliamL.Klemm,Vikram Rentala, Collider, Color SextetScalarsattheCERNLarge Hadron Phys. Lett.B673,255(2009),IPMU08-0086 Yanagida, Chuan-Ren Chen,FuminobuTakahashi andT. T. Gauge-Boson DarkMatter, High-energy Cosmic-RayPositrons from Hidden- MNRAS 394,239(2009),IPMU08-0090 Keiichi MaedaandKoichiIwamoto, Asphericity ofOver-Luminous Type IaSupernovae, CharacteristicsandPossible Observational Prog. Theo.Phys.121,121-164(2009),IPMU08-0039 Nakamura, Kin-yaOda, Shunichiro Kinoshita,ShinjiMukohyama,Shin A HolographicDualofBjorkenFlow, Phys. Rev. D79,044033(2009),IPMU08-0098 Alan Cooney, SimonDeDeo,DimitriosPsaltis, Without NewDegrees ofFreedom, Gravity withPerturbativeConstraints:DarkEnergy JCAP 02,004(2009),IPMU08-0071 Chuan-Ren Chen,FuminobuTakahashi, Cosmic raysfrom LeptonicDarkMatter, Astrophys. J.692,1131(2009),IPMU08-0048 Della Valle, P.A. Mazzali,E.Pian, Yoshida, G.C.Anupama,S.Benetti,G.Chincarini,M. Nomoto, S.Valenti, D.K.Sahu,T. Minezaki,Y. Yoshii, M. Masaomi Tanaka, NozomuTominaga, Ken'ichi Explosion ofaMassiveHeliumStar, Luminous X-rayTransient 080109:AnEnergetic Type IbSupernova2008Dassociatedwiththe Phys. Rev. D77,123524(2008),IPMU08-0025 Masahiro Kawasaki,KazunoriNakayama, Universe, Axion ModelsinInflationary Solving CosmologicalProblems ofSupersymmetric p Search forProton Decayvia MNRAS 395,777(2009) Sugiyama, Midori Tokutani, NaokiYoshida, S.PengOh,Naoshi The 21cmSignature ofEarlyRelicHIIRegions, Phys. Rev. D79,083501(2009),IPMU08-0060 Takeshi KobayashiandShinjiMukohyama, WMAP5, Conformal Inflation,ModulatedReheatingand Astrophys. J.694,992(2009),IPMU10-0030 Burke, J.Klein,Coish,K.Huffenberger, Y.-T. Lin,R.B.Partridge,J.Pober, K.ElBouchefry, S. Sunyaev-Zel'dovich EffectSurveys, in NearbyClustersofGalaxies:Implicationsfor Spectral Energy DistributionofRadioSources JFY2009 Astrophys. J.695,208(2009) Müller, B., Wanajo, S.,Nomoto,K.,Janka,H.-T., Kitaura,F. S.,and of AsymptoticGiantBranchStars, Nucleosynthesis inElectron Capture Supernovae JCAP 04,019(2009),IPMU08-0114 Kinney, Brian A.Powell,KonstantinosTzirakis,WilliamH. potential reconstruction, Tensors, non-Gaussianities,andthefuture of Prog. Theo.Phys.121, 711(2009),IPMU08-0022 Fuminobu Takahashi, A PossibleSolutiontotheStrong CPProblem, MNRAS 394,1317(2009),IPMU09-0001 Keiichi MaedaandNozomuTominaga, of Gamma-RayBursts, Explosions andConstraintsontheCentralEngine Nucleosynthesis of56Niinwind-drivenSupernova Phys. Rev. Lett.102,161601(2009),IPMU09-0025 Hirosi OoguriandMasahitoYamazaki, Emergent Calabi-Yau Geometry, 0066 Publ. Astron. Soc.Japan61,387(2009),IPMU08- Iye, Ken'ichiNomoto,andNobuyukiKawai, Ohta, KojiS.Kawabata,NaotoKobayashi,Masanori Kentaro Aoki,Tomonori Totani, Takashi Hattori,Kouji Implications fortheMgIIIncidenceProblem, Absorption Linestoward GRB060206: No EvidenceforVariability ofIntervening Phys Rev. Lett.102,141801(2009) The Super-Kamiokande Collaboration, →μ + π 0 inaLarge Water Cherenkov Detector, p → e + π 0 and

89 Publications 90 Publications Astrophys. J.697,1656(2009),IPMU10-0031 N.A. Bahcall,R.J.Brunner, X. Fan,J.F. Hennawi,F. Shankar, D.E.Vanden Berk, Richards, D.P. Schneider, D.H.Weinberg, A.J.Connolly, Y. Shen,M.A.Strauss,N.P. Ross,P.B. Hall,Y.-T. Lin,G.T. on PhysicalProperties, Quasar Clusteringfrom SDSSDR5:Dependences Phys. Rev. D79,091702(R)(2009),IPMU09-0003 Seong ChanParkandJingShu, Split universalextradimensionanddarkmatter, Astrophys. J.697, 676 (2009),IPMU08-0044 Gurugubelli, andKen'ichiNomoto, D.K. Sahu,MasaomiTanaka, G.C.Anupama,UdayK. Adding tothediversityoftypeIcsupernovae, The broad linetype IcsupernovaSN2007ru: JCAP 0905,015(2009),IPMU08-0113 Fuminobu Takahashi, ShojiTorii, Chuan-Ren Chen,KoichiHamaguchi,MihokoNojiri, BETS anomaly, Dark MatterModelSelectionandtheATIC/PPB- Phys. Lett.B675,73(2009),IPMU09-0027 Satoshi Shirai,FuminobuTakahashi, T.T.Yanagida, ATIC Anomalies, Decaying HiddenGauginoasaSource ofPAMELA/ JHEP 05,038(2009),IPMU09-0036 Yoshida, Sakura Schafer-Nameki, MasahitoYamazaki, Kentaroh CFTs, Coset constructionforDualsofNon-relativistic Nature, 459,49(2009) Hernquist, Volker Bromm, Yoshida, Naoki Lars McKee, Christopher Formation oftheFirstStarsandGalaxies, Astrophys. J.697,676-683(2009),IPMU09-0039 Nomoto, K.,Tominaga, N.,Yamanaka, M., Kawabata, K.,Tanaka, M.,Maeda,K.,Hattori,T., Supernova, Late Phase:DetectionofOpticalEmissionfrom The Extremely LuminousSupernova2006gyat MNRAS 395,2065-2086(2009),IPMU08-0070 Masahiro Takada, BhuvneshJain, lensing Surveys, The ImpactofNon-GaussianErrors onWeak Astrophys. J.697,730-734(2009) The Super-Kamiokande Collaboration Kamiokande, Search forNeutrinosfrom GRB08031BatSuper- Astropart. Phys.31,320-328(2009) The Super-Kamiokande Collaboration, Cherenkov Detector, First StudyofNeutron Tagging withaWater JHEP 0906,044 (2009) Sreethawong, Junji Hisano,MihokoM.Nojiri,Warintorn at theLHCandItsImpacton LFV Studies, Discriminating Electroweak-ino ParameterOrdering JCAP 0906,020(2009),IPMU09-0031 Shunichiro Kinoshita andShinjiMukohyama, Rubin compactification, Thermodynamic anddynamicalstabilityofFreund- JCAP 0906,001(2009),IPMU09-0041 Shinji Mukohyama, Horava-Lifshitz gravitywithoutinflation, Scale-invariant cosmologicalperturbationsfrom MNRAS 397,677(2009),IPMU09-0051 and M.Turatto, K. Maeda,P.A. Mazzali,A.Pastorello, F. Patat,S.A.Sim, Della Valle, N.Elisa-Rosa,S.Hachinger, W. Hillebrandt, S. Taubenberger, S.Valenti, S.Benetti,E.Cappellaro, M. Supernovae -probing theejectaasphericity, Nebular emission-lineprofiles of Type Ib/c Phys. Rev. D79,112010(2009) The Super-Kamiokande Collaboration, proton identification events inalarge waterCherenkov detectorwith Kinematic reconstruction ofatmosphericneutrino Phys. Lett.B677,195(2009),IPMU09-0020 Yonekura, Izawa K.-I.,FuminobuTakahashi, T.T.Yanagida, Kazuya Breaking,Runaway DynamicsandSupersymmetry Asian J.Math.13,215(2009),IPMU08-0104 Shushi Harashita, of abelianvarieties, Configuration ofthecentralstreams inthemoduli (2009) Publication ofAstronomical SocietyofJapan,61,481 Wada, NaokiYoshida, Makino, Takashi Okamoto,KohjiTomisaka, Keiichi Takayuki Saitoh,Hiroshi Daisaka,Eiichiro Kokubo,Jun Formation II, Toward First-PrincipleSimulationsofGalaxy (2009) Publication ofAstronomical SocietyofJapan61,32 Sugiyama, IsshaKayo,Yi-Peng Jing,KohjiYoshikawa, Takahashi, NaokiYoshida, Takahiko Matsubara,Naoshi Shun Saitoh,Kazuhiro Yahata, Yasushi Suto,Ryuichi Takahiro Nishimichi,AkihitoShirata,AtsushiTaruya, Oscillations, Acoustic Modeling NonlinearEvolutionofBaryon Phys. Lett.B677,59-61(2009),IPMU09-0005 Yanagida, Koichi Hamaguchi,FuminobuTakahashi, Tsutomu bound onthegluinomass, Decaying gravitinodarkmatterandanupper Astrophys. J.700,426(2009),IPMU09-0035 Biermann, Michael Loewenstein,AlexanderKusenko,PeterL. Galaxy, oftheUrsaMinorDwarfSpheroidalObservations New LimitsonSterileNeutrinosfrom Suzaku Phys. Rev. D80,027701(2009),IPMU09-0149 Alexander Kusenko,IanM.Shoemaker, supersymmetric darkmatterQ-balls, Neutrinos from the terrestrial passageof Phys. Rev. D80,023533(2009),IPMU09-0033 Cosimo Bambi,Masahiro Kawasaki,FedericoR.Urban, Axion braneworldcosmology, Astrophys. J.699,1119-1124(2009),IPMU09-0077 T., Pian,E.,Nomoto,K.,Mazzali,P.A., Tominaga, N., Tanaka, M.,Kawabata,K.S.,Maeda,K.,Iye,Hattori, Later-Phase Data, Supernova 2005bf:Larger Revealedby Asymmetry Spectropolarimetry oftheUniqueType Ib Astronomy andAstrophysics, 503,25 (2009) Dolag, LucaTornatore, Umberto Maio,BenedettaCiardi, NaokiYoshida, Klaus The OnsetofStarFormationinPrimordial Halos, JCAP 06,031(2009),IPMU08-0102 Katsuhiko Sato, Hajime Takami, Takahiro Nishimichi,KazuhikoYahata, Distribution andLarge-scale Structure, Cross-correlation betweenUHECR Arrival Phys. Rev. D79,124034(2009),IPMU09-0151 Multamaki, Alexander Kusenko,AnupamMazumdar, Tuomas supersymmetric condensate, Gravitational wavesfrom thefragmentationofa Phys. Rev. D80,015005(2009),IPMU09-0037 S.T. Petcov, H.SugiyamaandY. Takanishi, Decays intheHiggsTriplet Model, Neutrinoless DoubleBetaDecayandBr(H Phys. Rev. C79,061603(2009) Kajino, T., Otsuka,T., Umeda,H.,andNomoto,K., Suzuki, T., Honma,M.,Higashiyama,K.,Yoshida, T., and production ofMn55inpopulationIIIstars, Neutrino-induced reactions onFe56andNi56, JHEP 06,066(2009),IPMU09-0002 Takayanagi, Mitsutoshi Fujita,Wei Tadashi Li,ShinseiRyu, Chern-Simons, EdgeStates,andHierarchy, Fractional QuantumHallEffectviaHolography: ±± → l ± l ± ) Prog. Theo.Phys.122,427(2009),IPMU09-0010 Koji Hashimoto,Tadakatsu Sakai,ShigekiSugimoto, Nuclear Force from StringTheory, Class. Quant.Grav. 26,155021(2009),IPMU09-0053 Domenico OrlandoandSusanneReffert, Gravity, On theRenormalizabilityofHorava-Lifshitz-type Phys. Lett.B679:6-9,2009,IPMU09-0052 Takahashi, Shuichiro Yokoyama, Shinji Mukohyama,KazunoriNakayama,Fuminobu Cosmology, Phenomenological AspectsofHorava-Lifshitz Astrophys. J.700,1680(2009),IPMU09-0078 Mazzali, P.A., Pian,E., Sahu, D.K.,Anupama,G.C.,Tominaga, N.,Nomoto,K., Hattori, T., Minezaki,T., Valenti, S.,DellaValle, M., Tanaka, M.,Yamanaka, M.,Maeda,K.,Kawabata,K.S., Viewed BipolarExplosion, Supernova 2008D/X-rayTransient 080109:Side- oftheTypeNebular PhaseObservations Ib Nucl. Phys.B824,365(2010),IPMU09-0030 Reffert, Robbert Dijkgraaf,DomenicoOrlando,Susanne Quantization, Relating FieldTheoriesviaStochastic JCAP 07(2009)032,IPMU09-0064 Takeshi KobayashiandShinjiMukohyama, inWarpedCurvatons Throats, Astrophys. J.700,479(2009) Shun Saitoh, Takahiro Nishimichi,AkihitoShirata,AtsushiTaruya, Takahiko Matsubara,NaoshiSugiyama,IsshaKayo, Takahashi,Ryuichi NaokiYoshida, Masahiro Takada, AcousticOscillationsII, Simulations ofBaryon Prog. Theo.Phys.122,205(2009),IPMU09-0109 Masahiro Kawasaki,KatsuhikoSato, Cosmological ConstraintsonaMassiveNeutrino, J. Phys.A42,304018(2009),IPMU08-0116 M. Jimbo,T. Miwa,F. Smirnov, Introducing Matsubaradirection, Hidden GrassmannStructure inXXZModelIII: Astrophys. J.700,302-308(2009),IPMU09-0074 Turner, GilEsquerdo andMatthewJ.Holman, Norio Narita,IanJ.Crossfield, Yasushi Suto,EdwinL. Fabrycky, Andrew W. Howard, Geoffrey W. Marcy, Joshua N.Winn,JohnAsherJohnson,Daniel System, Exoplanetary On theSpin-OrbitMisalignmentofXO-3

91 Publications 92 Publications Large Phys. Rev. D80,064005(2009),IPMU09-0066 Shinji Mukohyama, Lifshitz gravity, Dark matterasintegrationconstantinHorava- Phys. Lett.B679,436(2009),IPMU09-0082 Kazunori Nakayama,FuminobuTakahashi, The R-axionandnon-Gaussianity, Prog. Theor. Phys.122,553-559(2009),IPMU08-0092 Takahashi, T.T. Yanagida, Chua-Ren Chen,MihokoM.Nojiri,Fuminobu and ATIC/PPB-BETS Anomalies, Decaying HiddenGaugeBosonandthePAMELA JCAP 08,024(2009) Sasaki, SachikoTsuruta, Hideyuki Umeda,NaokiYoshida, Ken'ichiNomoto,Mei Dark Matter, Early BlackholeFormationbyAccretion ofGasand Astrophys. J.701,1665(2009) and Yong, D., Nomoto, K.,Podsiadlowski,P., Frebel, A.,Fesen,R. Kerzendorf, W. E.,Schmidt,B.P., Asplund,M., the Tycho SupernovaRemnant, Subaru High-ResolutionSpectroscopy ofStarGin Astrophys. J.701,945(2009) Naoshi Sugiyama, Masahiro Takada, NaokiYoshida, Takahiko Matsubara, Masanori Sato,Takashi Takahashi, Hamana,Ryuichi Simulations ofWide-FieldWeak I, LensingSurveys JHEP 09,127(2009),IPMU09-0088 Kitano, Koichi Hamaguchi,FuminobuTakahashi, Ryuichiro Mediation, Non-thermal GravitinoDarkMatter inGauge JCAP 0909,005(2009),IPMU09-0081 Shinji Mukohyama, Caustic avoidanceinHorava-Lifshitzgravity, JCAP 0909,002(2009),IPMU09-0059 Nakayama, FuminobuTakahashi, Etsuko Kawakami,Masahiro Kawasaki,Kazunori Analysis ofTrispectrum, Non-Gaussianity from Isocurvature Perturbations: (2009), IPMU08-0105 Journal ofPure and AppliedAlgebra213,1823-1834 Shushi Harashita, groups, Successive extensionsofminimalp-divisible Phys. Rev. D80,053013(2009) Werner Rodejohann, Srubabati Goswami,Serguey Petcov, ShamayitaRay, U e3 andTri-bimaximal Mixing, Phys. Rev. D80, 095010 (2009),IPMU09-0072 Wu, Tao Han,HaishanLiu,MingxingLuo,KaiWang, Wei the LHC, Like-sign Di-leptonSignalsinHiggslessModelsat MNRAS 399,1347(2009),IPMU08-0096 Dolgov, KatherinePreese, MartaVolonteri, Cosimo Bambi,DouglassSpolyar, Alexander D. holes, stars andtheoriginofsuper-massive black Implications ofprimordial blackholesonthefirst 0087 Commun. Math.Phys.292,179-199(2009),IPMU08- Hirosi Ooguriand Masahito Yamazaki, MeltingandToricCrystal Calabi-Yau Manifolds, JHEP 10,038(2009),IPMU09-0108 Gadhia, ElenaMendez-Escobar, Paul deMedeiros, JoseFigueroa-O'Farrill, Sunil ADEwithatwist, Half-BPS quotientsinM-theory: Phys. Rev. D80,083528(2009),IPMU09-0084 Shun Saito,Masahiro Takada, AtsushiTaruya, and parameterforecasts, approachdark mattermodel:perturbationtheory Nonlinear galaxypowerspectrumforamixed Phys. Rev. D80,085017(2009),IPMU09-0057 Kazuya Yonekura, Izawa K.-I.,FuminobuTakahashi, T. T. Yanagida, and Gauge Theories, BreakingConformal Supersymmetry inVector-like Phys. Lett.B680,485(2009),IPMU09-0054 Satoshi Shirai,FuminobuTakahashi, T. T. Yanagida, Experiments, electron/positron Excessesinthe PAMELA/Fermi R-violating DecayofWinoDarkMatterand Astrophys. J.703,1624(2009) Mazzali, P. A.,Deng,J.,Hamuy, M.,andNomoto,K., with Hydrogen, SN 2003bg:ABroad-Lined Type IIbSupernova Phys. Rev. D80,083518(2009),IPMU09-0009 Damien EassonandRuthGregory, Circumventing theetaproblem, JCAP 09,023(2009),IPMU09-0050 Takeshi Kobayashi,ShinjiMukohyama,BrianA.Powell, Cosmological ConstraintsonRapidRollInflation, Astrophys. J.704,503-512(2009) The Super-Kamiokande Collaboration, Super-Kamiokande, Search forAstrophysical NeutrinoPointSources at Astrophys. J.Lett.707,118(2009) Yanagisawa, K.,andYoshida, M., Takahashi, H.,Tanaka, H.,Uemura,M.,Yamashita, T., T., Sakai,N.,Sasada,M.,Suzuki, M.,Taguchi, H., S., Nagae,O.,Nakaya,H.,Ohsugi, T., Omodaka, T., Konishi,K.,Kuroda, D.,Miyamoto,H.,Miyazaki, S., Ikejiri,Y., Itoh,R.,Kamata,Y., Kawai,N.,Komatsu, Chiyonobu, S.,Fukazawa,Y., Hashimoto,O.,Honda, M., Imada,A.,Maeda,K.,Nomoto,Arai, Yamanaka, M.,Kawabata,K.S.,Kinugasa,K.,Tanaka, Type IaSupernova2009dc, ofExtremelyEarly PhaseObservations Luminous Nucl. Phys.B823,47(2009),IPMU09-0014 Taizan Watari, Hirotaka Hayashi,Teruhiko Kawano,RaduTatar and Couplings inF-theory, Codimension-3 SingularitiesandYukawa Nucl. Phys.B823,1(2009),IPMU09-0047 Radu Tatar, Yoichi Tsuchiya andTaizan Watari, compactifications, Right-handed neutrinosinF-theory 0065 Prog. Theo.Phys.122,1277-1284(2009),IPMU09- Satoshi Shirai,FuminobuTakahashi, T. T. Yanagida, Hidden GauginoDarkMatter, Cosmic-ray Electron andPositron Excesses from Astrophys. J.Lett.705,10(2009),IPMU09-0115 N. Tominaga, S.Blinnikov, P. Baklanov, K.Nomoto, Breakout andPlateau, ofShock 04D2dc: MulticolorLightCurves Properties ofType IIPlateauSupernovaSNLS- Astrophys. J.706,441(2009),IPMU09-0122 Kaneda, Takaya Nozawa,Takashi Kozasa, Sakon, Takashi Onaka,Woong-Seob Jeong,Hidehiro Ho-Gyu Lee,Bon-ChulKoo,Dae-SikMoon,Itsuki Medium andSupernovaEjetca, Remnant G292.0+1.8:UnveilingCircumstellar AKARI Infrared oftheSupernova Observations J. PhysA42,445206(2009),IPMU09-0069 Jose Figueroa-O'Farrill, Simplicity intheFaulknerconstruction, IPMU09-0034 Proc. Jpn.Acad.Ser.A 85,Ser. A,No.7,84-88(2009), Kyoji Saito, Growth functionsforArtinmonoids, Astrobiology 9(3),305(2009),IPMU09-0076 Turner, Sally V. Langford, J.Stuart,B.WyitheandEdwinL. Photometric Variability inEarthshineObservations, Phys. Rev. D80,104023(2009),IPMU09-0113 Rohta Takahashi, NaokiYoshida, Cosimo Bambi,KatherineFreese, Tomohiro Harada, Accretion process ontosuper-spinning objects, Publ. Astron. Soc.Japan61,991(2009) Turner, E.L.,Aoki,W., Tamura, M.andYamada, T., Narita, N.,Hirano,T., Sato,B., Winn,J.N.,Suto,Y., SystemHD17156, Effect intheExoplanetary Improved Measurement oftheRossiter-McLaughlin Astrophy. J.704,733(2009) Moro-Martin, A.,Turner, E.L.andLoeb,A., System?, Extra-Solar PlanetesimalsEnteringtheSolar Will theLarge Telescope Synoptic Survey Detect Phys. Rev. Lett.103,151802(2009) Yasuhiro Shimizu, Johan Alwall,KenjiHiramatsu,MihokoM.Nojiri, processes withinitial stateradiation, Novel reconstruction techniqueforNewPhysics Phys. Rev. D80,075021(2009),IPMU09-0147 Ian M.Shoemaker, AlexanderKusenko, Gravitino darkmatterfrom Q-balldecays, JHEP 09,078(2009),IPMU08-0023 Jing Shu,MichihisaTakeuchi, Chuan-Ren Chen,MihokoM.Nojiri,SeongChanPark, UED, Dark matterandcolliderphenomenologyofsplit- Phys. Rept.481,1(2009),IPMU09-0148 Alexander Kusenko, fermions, Sterile neutrinos:thedarksideoflight 0105 Phys. Lett.B683,61\&8211,68(2010),IPMU09- Domenico OrlandoandSusanneReffert, Point, On thePerturbativeExpansionaround aLifshitz Astrophys. J.708,1703(2010),IPMU09-0093 Kentaro Motohara, Paolo A.Mazzali,Giorgos Leloudas,Ken'ichiNomoto, Keiichi Maeda,StefanTaubenberger, JesperSollerman, Ia Supernovae, ofTypeNebular SpectraandExplosionAsymmetry Phys. Lett.B670,281(2009),IPMU09-0154 George M.Fuller, AlexanderKusenko,KalliopiPetraki, Heavy sterileneutrinosandsupernovaexplosions, 0030 Topology anditsAppliations157,2(2010),IPMU08- Toshitake Kohno, invariants forbraids, Bar complex,configurationspacesandfinitetype Prog. Theo.Phys.122,1433(2009),IPMU09-0085 Toshiya Imoto,Tadakatsu Sakai,ShigekiSugimoto, O(N) andUSp(N)QCDfrom StringTheory,

93 Publications 94 Publications JCAP 01,023(2010),IPMU09-0126 Takahashi, Chuan-ren Chen,SouravK.Mandal,Fuminobu Activities ofDecayingDarkMatter, Gamma-ray ConstraintsonHadronic andLeptonic Phys. Rev. D81,023512(2010),IPMU09-0114 Damien A.Easson,ShinjiMukohyama,BrianPowell, Couplings inDBIInflation, SignaturesObservational ofGravitational Phys. Lett.B671,60-65(2009),IPMU08-0057 E. Molinaro, S.T. Petcov, Contribution, A CaseofSubdominant/Suppressed "HighEnergy" Astropart. Phys.33,81-85(2010),IPMU09-0150 Warren Essey, AlexanderKusenko, ofactivegalacticnuclei, observations A newinterpretation ofthegamma-ray Astrophys. J.707,1466-1484(2009),IPMU10-0005 Chiaki Kobayashi,Ken'ichiNomoto, Metallicity Effect, Evolution I:LifetimeofType IaSupernovaeand The RoleofType IaSupernovaeinChemical Astrophy. J.706,1184(2009) Naoki Yoshida, SachikoTsuruta, Takuya Ohkubo,Ken'ichiNomoto,HideyukiUmeda, Mass Accretion, Evolution ofVery MassivePopulationIIIStarswith JHEP 0909,115(2009),IPMU09-0095 C. Hagedorn,E.Molinaro, S.T. Petcov, Models withA Majorana PhasesandLeptogenesisinSee-Saw MNRAS 399,1482(2009),IPMU10-0003 Tsz Yan Lam,RaviK.Sheth,Vincent Desjacques, and voidabundance, local non-Gaussianityandimplicationsforhalo The initialshearfieldinmodelswithprimordial Phys. Rev. Lett.101,211301(2008),IPMU09-0153 Alexander Kusenko,AnupamMazumdar, primordial scalarcondensateintoQ-balls, Gravitational wavesfrom fragmentationofa Nucl. Phys.B833,153-198(2010), Daniel Krefl, SaraPasquettiandJohannes Walcher, The real topologicalvertexatwork, JHEP 10,005(2009) Mihoko M.Nojiri,KazukiSakurai, Sung-Gi Kim,Nobuhiro Maekawa,KeikoI.Nagao, non-universal sfermionmasses, LHC signature ofsupersymmetricmodelswith 4

Symmetry, Phys. Rev. C81, 025807 (2010),IPMU10-0037 Heeger, F. Piquemal,J.-S.Ricol,M.P. Decowski, D.M.Markoff, W.H. J.Karwowski, Tornow, K.M. Bugg, Y. Efremenko, Y. Kamyshkov, O.Perevozchikov, Tang, S.Dazeley, K.E.Downum, G.Gratta,K.Tolich, W. Matsuno, S.Pakvasa,J.Foster, G.A.Horton-Smith, J. Maricic,T. Miletic,M.Batygov, J.G.Learned, S. McKeown, P. Vogel, C.Zhang,B.E.Berger, C.E.Lane, A. Winslow, D.A.Dwyer, C.Jillings,Mauger, R.D. C. Lendvai,K.-B.Luk,T. O'Donnell,H.M.Steiner, L. F. Gray, E.Guardincerri, L.Hsu,K.Ichimura, R.Kadel, Bloxham, J.A.Detwiler, S.J.Freedman, B.K.Fujikawa, D. S.Leonard, D.McKee, A.Piepke,T. I.Banks,T. Murayama, J.Busenitz,T. Classen,C.Grant,G.Keefer, Watanabe, E.Yonezawa, S.Yoshida, A.Kozlov, H. A. Suzuki,Y. Takemoto, K.Tamae, A.Terashima, H. Nakamura, I.Shimizu,Y. Shimizu,J.Shirai,F. Suekane, T. Mitsui,K.Nakajima,Nakamura,M. K. Inoue,Y. Kibe,Y. Kishimoto,M.Koga,Y. Minekawa, S. Abe,Enomoto,K.Furuno,Y. Gando,H.Ikeda, muon spallationinKamLAND, Production ofradioactiveisotopesthrough cosmic Phys. Rev. D81,043508(2010),IPMU09-0143 Freese, DouglasSpolyar, HitoshiMurayama, Sourav K.Mandal,MatthewR.Buckley, Katherine Anomalies, Interpretation ofthePAMELA andFermi a DefinitiveConstraintontheDarkMatter Cascade EventsatIceCube+DeepCore as Astrophys. J.710,958-963(2010) Norita Kawanaka,KunihitoIoka,MihokoM.Nojiri, Positron injections, or Smooth?:ContinuousandMultipleElectron/ Cosmic-Ray Electron Excessfrom Pulsars isSpiky Phys. Rev. D81,034012(2010),IPMU09-0130 Jing Shu,Tim Tait andKaiWang, attheTevatron,asymmetry Explorations oftheTop quarkforward-backward Astrophys. J.709,920(2010),IPMU10-0033 K. Huffenberger, Y.-T. Lin,J.Ostriker, H.Trac, N. Sehgal,P. Bode,S.Das,C.Hernandez-Monteagudo, Simulations oftheMicrowave Sky, Computer PhysicsCommunications180,625(2009) Naoki Yoshida, in theUniverse, Supercomputer simulationsofstructure formation Phys. Lett.B683,294-297(2010),IPMU09-0135 Paul Frampton,JingShuandKaiWang, Backward atTevatron, Asymmetry Axigluon asPossibleExplanationforttbarForward Phys. Rev. D81,023503(2010),IPMU10-0015 Jacek Guzik,BhuvneshJain,Masahiro Takada, surveys, Tests ofgravityfrom imagingandspectroscopic MNRAS 402,2397(2010),IPMU10-0004 Tsz Yan Lam,Vincent Desjacques,RaviK.Sheth, primordial non-Gaussianity, distribution functioninmodelswithlocal The nonlinearredshift spaceprobability Astrophys. J.712,624(2010),IPMU09-0094 Thielemann, Wolfgang Hillebrandt,ClaudiaTravaglio, Friedel Keiichi Maeda,FriedrichK.Roepke,MichaelFink, Explosions, Detonation ModelsofType IaSupernova Nucleosynthesis inTwo-Dimensional Delayed Phys. Rev. D81,054004(2010),IPMU09-0103 C.S. Kim,SeongchanPark,KaiWang, Guo-huaiZhu, Invisible Higgsbosonfrom B Phys. Lett.B685,309-312(2010),IPMU09-0104 Seong-Chan Park,KaiWang, T.T. Yanagida, phenomenological implications, Neutrino massfrom ahiddenworldandits → K νν − ,

95 Publications 96 Publications 2. 12 using azimuthalangulardependence Randall-Sundrum gravitonspin determination Hitoshi MurayamaandVikram Rentala, IPMU09-0048 Nucl. Phys.B823,1(2009),arXiv:0905.2289 [hep-th] compactifications, Right-handed neutrinosinF-theory Radu Tatar, Yoichi Tsuchiya andTaizan Watari, IPMU09-0047 Blue Spectrum Axion Isocurvature FluctuationswithExtremely Shinta Kasuya,Masahiro Kawasaki, IPMU09-0046 Astronomy &Astrophysics, arXiv:0904.3849[astro-ph] dense matterincore-collapse supernovae, The equationofstateandcompositionhot, S.I. Blinnikov, I.V. Panov, M.A.Rudzsky, K.Sumiyoshi, IPMU09-0045 Physics ofAtomicNuclei,arXiv:0904.3609[astro-ph] Notes onHiddenMirror World, Sergei Blinnikov, IPMU09-0044 positrons from AnnihilatingDarkMatter Diffuse Gamma-rayBackground andCosmic-ray Nakayama, Masahiro Kawasaki,KazunoriKohri, IPMU09-0043 Microwave Background Constraining LightGravitinoMassfrom Cosmic Nakayama, Toyokazu Sekiguchi,Tomo Takahashi, Kazuhide Ichikawa,Masahiro Kawasaki,Mazunori IPMU09-0042 JCAP 0906,001(2009),arXiv:0904.2190[hep-th] Horava-Lifshitz gravitywithoutinflation, Scale-invariant cosmologicalperturbationsfrom Shinji Mukohyama, IPMU09-0041 Frascati Workshop 2007 Gamma-Ray Bursts, Supernovae inThree-Dimension: ALinkto Keiichi Maeda IPMU09-0040 [astro-ph] Astrophys. J.697,676-683(2009),arXiv:0902.1440 Supernova, Late Phase:DetectionofOpticalEmissionfrom The Extremely LuminousSupernova2006gyat Nomoto, K.,Tominaga, N.,Yamanaka, M., Kawabaka, K.,Tanaka, M.,Maeda,K.,Hattori,T., IPMU09-0039 JFY2009

Preprints Topological Dark Matter Hitoshi MurayamaandJingShu, IPMU09-0058 [hep-th] Phys. Rev. D80, 085017 (2009),arXiv:0905.1764 Gauge Theories, BreakingConformal Supersymmetry inVector-like Kazuya Yonekura, Izawa K.-I.,FuminobuTakahashi, T. T. Yanagida, and IPMU09-0057 Holographic EntanglementEntropy: AnOverview Tatsuma Tadashi Nishioka,ShinseiRyu, Takayanagi, IPMU09-0056 arXiv:0905.0688 [hep-th] Points, DualsofLifshitz-likeFixed On StringTheory Tatsuo Azeyanagi,Wei Li,Tadashi Takayanagi, IPMU09-0055 [hep-ph] Phys. Lett.B680,485(2009),arXiv:0905.0388 Experiments, electron/positron Excessesinthe PAMELA/Fermi R-violating DecayofWinoDarkMatterand Satoshi Shirai,FuminobuTakahashi andT. T. Yanagida, IPMU09-0054 arXiv:0905.0301 [hep-th] Class. Quant.Grav. 26,155021(2009), Gravity, On theRenormalizabilityofHorava-Lifshitz-type Domenico OrlandoandSusanneReffert, IPMU09-0053 Phys. Lett.B679,6(2009),arXiv:0905.0055[hep-th] Cosmology, Phenomenological AspectsofHorava-Lifshitz Takahashi, Shuichiro Yokoyama, Shinji Mukohyama,KazunoriNakayama,Fuminobu IPMU09-0052 MNRAS 397,677(2009),arXiv:0904.4632[astro-ph] Supernovae -probing theejectaasphericity, Nebular emission-lineprofiles of Type Ib/c and M.Turatto, K. Maeda,P.A. Mazzali,A.Pastorello, F. Patat,S.A.Sim, Della Valle, N.Elisa-Rosa,S.Hachinger, W. Hillebrandt, S. Taubenberger, S.Valenti, S.Benetti,E.Cappellaro, M. IPMU09-0051 JCAP 09,023(2009),arXiv:0902.1798[hep-th] Cosmological ConstraintsonRapidRollInflation Takeshi Kobayashi,ShinjiMukohyama,BrianA.Powell, IPMU09-0050 Physical ReviewD,arXiv:0903.2845[astro-ph] A NewWay toFindtheMissingBaryons, Shirley Ho,SimonDeDeo,DavidSpergel, IPMU09-0049

97 Preprints 98 Preprints J. Phys A 42, 445206 (2009), arXiv:0905.4900 [hep-th] arXiv:0905.4900 (2009), 445206 42, A Phys J. Simplicity intheFaulknerconstruction, Jose Figueroa-O'Farrill, IPMU09-0069 arXiv:0905.3658 [astro-ph] Yadernaya Fizika(PhysicsofAtomicNuclei), core-collapse supernova, Spin flipofneutrinoswithmagneticmomentin Oleg Lychkovskiy, Sergei Blinnikov, IPMU09-0068 A Test forLightGravitinoScenarioattheLHC Satoshi ShiraiandT. T. Yanagida, IPMU09-0067 [hep-th] Phys. Rev. D80,064005(2009),arXiv:0905.3563 Lifshitz gravity, Dark matterasintegrationconstantinHorava- Shinji Mukohyama, IPMU09-0066 JHEP 0909,115(2009),arXiv:0905.3235[hep-ph] Hidden GauginoDarkMatter, Cosmic-ray Electron andPositron Excesses from Satoshi Shirai,FuminobuTakahashi, T. T. Yanagida, IPMU09-0065 JCAP 07(2009)032,arXiv:0905.2835[hep-th] inWarpedCurvatons Throats, Takeshi KobayashiandShinjiMukohyama, IPMU09-0064 probe ofdarkmatterproperties Upward muonsignalsatneutrinodetectorsasa Junji Hisano,KazunoriNakayama,andMasakiYang, IPMU09-0063 arXiv:0905.0473 [hep-th] Horava-Lifshitz Holography, Tatsuma Nishioka, IPMU09-0062 Theory Supersymmetric Non-relativistic GeometriesinM Hirosi OoguriandChang-SoonPark, IPMU09-0061 from DarkMatter Inverse Problem ofCosmic-RayElectron/Positron Koichi Hamaguchi,KouheiNakaji,EitaNakamura, IPMU09-0060 JCAP 0909,002(2009),arXiv:0905.1552[astro-ph] Analysis ofTrispectrum, Non-Gaussianity from Isocurvature Perturbations: Nakayama, andFuminobuTakahashi, Etsuko Kawakami,Masahiro Kawasaki,Kazunori IPMU09-0059 [astro-ph] Astrophys. 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D80,083528(2009),arXiv:0907.2922 and parameterforecasts, approachdark mattermodel:perturbationtheory Nonlinear galaxypowerspectrumforamixed Shun Saito,Masahiro Takada, AtsushiTaruya, IPMU09-0084 Topological StringonOSP(1–2)/U(1) Gaston Giribet,Yasuaki Hikida,Tadashi Takayanagi, IPMU09-0083 Phys. Lett.B679,436(2009) The R-axionandnon-Gaussianity Kazunori Nakayama,FuminobuTakahashi, IPMU09-0082 JCAP 0909,005(2009),arXiv:0906.5069[hep-th] Caustic avoidanceinHorava-Lifshitzgravity, Shinji Mukohyama, IPMU09-0081 arXiv:0906.2221 [astro-ph] Surveys, Tests ofGravityfrom ImagingandSpectroscopic Jacek Guzik,BhuvneshJain,Masahiro Takada, IPMU09-0080 arXiv:0906.2811 [astro-ph] Galaxy, A uniqueCore-Collapse SupernovainAnElliptical S., Tanaka, M.,Hattori,T., Itagaki,K., Kawabata, K.S.,Maeda,K.,Nomoto,Taubenberger, IPMU09-0079 [astro-ph] Astrophys. 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99 Preprints 100 Preprints Extended SeesawModel an in experiment DAMA and anomalies ray Cosmic H. SungCheon,SinKyuKang,C. S.Kim, IPMU09-0106 arXiv:0908.4429 [hep-th] Phys. Lett.B683,61&8211,68(2010), Point, On thePerturbativeExpansionaround aLifshitz Domenico OrlandoandSusanneReffert, IPMU09-0105 [hep-ph] Phys. Lett.B685,309-312(2010),arXiv:0909.2937 phenomenological implications, Neutrino massfrom ahiddenworldandits Seong-Chan Park,KaiWang, T.T. Yanagida, IPMU09-0104 Constraining InvisibleHiggsfrom B¿K+missing, C.S. Kim,KaiWang, Guo-huaiZhu, IPMU09-0103 the LHC Nearly DegenerateGauginosandDarkMatterat Gian F. Giudice,Tao Han,KaiWang, Lian-Tao Wang, IPMU09-0102 arXiv:0908.4317 [hep-ph] Kaluza-Klein DarkMatterAfterFermi, and JingShu, Chuan-Ren Chen,MihokoM.Nojiri,SeongChanPark IPMU09-0101 Arxiv:0908.3238 Is theCarter-Israel conjecture correct?, Cosimo Bambi,KatherineFreese, RohtaTakahashi, IPMU09-0100 arXiv:0908.4123 [hep-th] Can ghostcondensatedecrease entropy?, Shinji Mukohyama, IPMU09-0099 M2-branes, Einsteinmanifoldsandtriplesystems Jose Figueroa-O'Farrill, IPMU09-0098 Scattering attheLHC Probing spinoftheresonance unitarizingWW William Klemm,Hai-shanLiu,KaiWang, IPMU09-0097 J PhysA,arXiv:0908.2125[hep-th] theories from representation theory, Superpotentials forsuperconformal Chern-Simons Mendez-Escobar, Paul deMedeiros, JoseFigueroa-O'Farrill, Elena IPMU09-0096 Accretion process inKerrspacetimes with|a|> Rohta Takahashi, NaokiYoshida, Cosimo Bambi,KatherineFreese, Tomohiro Harada, IPMU09-0113 arXiv:0909.2149 [astro-ph] cosmic expansioninHorava-Lifshitzgravity, Primordial magneticfieldfrom non-inflationary Shiromizu, Satoshi Maeda,ShinjiMukohyamaandTetsuya IPMU09-0112 Astrophys. 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101 Preprints 102 Preprints [hep-ph] Phys. Rev. D81, 043508 (2010),arXiv:0911.5188 Anomalies, Interpretation ofthePAMELA andFermi a DefinitiveConstraintonthe DarkMatter Cascade EventsatIceCube+DeepCore as Freese, DouglasSpolyar, HitoshiMurayama, Sourav K.Mandal,MatthewR.Buckley, Katherine IPMU09-0143 arXiv:0911.5342 [hep-th] Open BPSWall Crossing andM-theory, Mina AganagicandMasahitoYamazaki, IPMU09-0142 General GaugeMediationwithMessengers, Kenneth IntriligatorandMatthewSudano, IPMU09-0141 Phys. 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103 Preprints 104 Preprints Phys. Rev. D,80, 083528(2009) massive clusters, from two-dimensionallensingshearmapsof25 Direct measurement ofdarkmatterhaloellipticity Graham P. 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J.707,1466-1484(2009),arXiv:0801.0215 Metallicity Effect, Evolution I:LifetimeofType IaSupernovaeand The RoleofType IaSupernovaeinChemical Chiaki Kobayashi,Ken'ichiNomoto, IPMU10-0005 MNRAS 402,2397(2010),arXiv:0908.2285[astro-ph] primordial non-Gaussianity, distribution functioninmodelswithlocal The nonlinearredshift spaceprobability Tsz Yan Lam,Vincent Desjacques,RaviK.Sheth, IPMU10-0004 Phys. Rev. D, Walls, Gravitational Waves from CollapsingDomain Saikawa, Takashi Hiramatsu,Masahiro Kawasaki, Ken'ichi IPMU10-0024 TBA, arXiv:1002.1709[hep-th] MeltingandWallCrystal Crossing Phenomena, Masahito Yamazaki, IPMU10-0023 MNRAS, arXiv:1001.2606[astro-ph] instarburstgalaxies, extinction curves Effects ofgrainshatteringbyturbulenceon Takashi Kozasa, Hiroyuki Hirashita,Takaya Nozawa,Huirong Yan, IPMU10-0022 Schrodinger geometry, Universal time-dependentdeformationsof Yu Nakayama, IPMU10-0021 Collider phenomenologyofsplit-UED, Rizzo, G. Thomas Park, Chan Seong Kong, Kyoungchul IPMU10-0020 Phys. Rev. D81,104004(2010) Outflows from accreting super-spinars, Takahashi, NaokiYoshida, Cosimo Bambi,Tomohiro Harada,Rohta IPMU10-0019 arXiv:1001.4634 [astro-ph] Ghost DarkMatter, Ichiki, NaoshiSugiyama,ShinjiMukohyama, Tomonori Furukawa,Shuichiro Yokoyama, Kiyotomo IPMU10-0018 Phys. Rev. D, strings, Gravitational wavesfrom kinksoninfinitecosmic Nakayama, Masahiro Kawasaki,KoichiMiyamoto,Kazunori IPMU10-0017 arXiv:1001.5031 [hep-th] Wall Crossing PhenomenologyofOrientifolds, Daniel Krefl, IPMU10-0016 [astro-ph] Phys. Rev. D81,023503(2010),arXiv:0906.2221 surveys, Tests ofgravityfrom imagingandspectroscopic Jacek Guzik,BhuvneshJain,Masahiro Takada, IPMU10-0015 ph] Astrophys. J.709,920(2010),arXiv:0908.0540[astro- Simulations oftheMicrowave Sky, K. Huffenberger, Y.-T. Lin,J.Ostriker,H. Trac, N. Sehgal,P. Bode,S.Das,C.Hernandez-Monteagudo, IPMU10-0033 Astrophys. J.,arXiv:0904.3098 [astro-ph] Brightest ClusterGalaxies, A NewTest oftheStatisticalNature ofthe Yen-Ting Lin,Jeremiah P. Ostriker, ChristopherJ.Miller, IPMU10-0032 [astro-ph] Astrophys. J.697, 1656 (2009),arXiv:0810.4144 on PhysicalProperties, Quasar Clusteringfrom SDSSDR5:Dependences Vanden Berk,N.A.Bahcall,R.J.Brunner, Connolly, X.Fan,J.F. Hennawi,F. Shankar, D.E. G.T. Richards, D.P. Schneider, D.H.Weinberg, A.J. Y. Shen,M.A.Strauss,N.P. Ross,P.B. Hall,Y.-T. Lin, IPMU10-0031 ph] Astrophys. J.694,992(2009),arXiv:0805.1750[astro- Sunyaev-Zel'dovich EffectSurveys, in NearbyClustersofGalaxies:Implicationsfor Spectral Energy DistributionofRadioSources S. Burke,J.Klein,Coish,K.Huffenberger, Y.-T. Lin,R.B.Partridge,J.Pober, K.ElBouchefry, IPMU10-0030 Windows ofVector-like GaugeTheories, Semi-direct GaugeMediationinConformal T.T.Yanagida andKazuyaYonekura, IPMU10-0029 mediation, Numerical studyofQ-ballformationingravity Takahashi, Takashi Hiramatsu,Masahiro Kawasaki,Fuminobu IPMU10-0028 Astrophys. J.,arXiv:1002.2476[astro-ph]. catastrophic errors, lensing tomography:aclippingmethodofthe The impactofphotometricredshift errors onweak Furusawa, Atsushi Nishizawa,Masahiro Takada, T. Hamana,H. IPMU10-0027 arXiv:0907.1704v1 [hep-th] Intermediate BlackHolesasDarkMatter, Paul H.Frampton, IPMU10-0026 arXiv:1002.2981 [hep-th] Sublattice CountingandOrbifolds, Amihay Hanany, DomenicoOrlando,SusanneReffert, IPMU10-0025 intersections in typeIIstringtheory, Warped anti-deSitterspacesfrom brane Domenico Orlando,LindaI.Uruchurtu, IPMU10-0041 Unitarity Boomerang, Paul H.FramptonandXiao-Gang He, IPMU10-0040 Entropic Inflation, Damien Easson,PaulFrampton,George Smoot, IPMU10-0039 arXiv:1003.0076 [astro-ph] Effects ofLightFieldsDuringInflation, Takeshi KobayashiandShinjiMukohyama, IPMU10-0038 arXiv:0907.0066 [hep-ex] Phys. Rev. C81,025807(2010), muon spallationinKamLAND, Production ofradioactiveisotopesthrough cosmic Decowski, W. Tornow, K.M.Heeger, F. Piquemal,J.-S.Ricol,M.P. O. Perevozchikov, D.M.Markoff, H.J.Karwowski, Gratta, K.Tolich, W. Bugg,Y. Efremenko, Y. Kamyshkov, Horton-Smith, A.Tang, S.Dazeley, K.E.Downum,G. J. G.Learned,S.Matsuno,Pakvasa,Foster, G.A. Berger, C.E.Lane,J.Maricic,T. Miletic,M.Batygov, C. Mauger, R.D.McKeown,P. Vogel, C.Zhang,B.E. H. M.Steiner, L.A.Winslow, D.A.Dwyer, C.Jillings, Ichimura, R.Kadel,C.Lendvai,K.-B.Luk,T. O'Donnell, B. K.Fujikawa,F. Gray, E.Guardincerri, L.Hsu,K. Banks, T. Bloxham,J.A.Detwiler, S.J.Freedman, Keefer, D.S.Leonard, D.McKee,A.Piepke,T. I. H. Murayama,J.Busenitz,T. Classen,C.Grant,G. Watanabe, E.Yonezawa, S.Yoshida, A.Kozlov, A. Suzuki,Y. Takemoto, K.Tamae, A.Terashima, H. Nakamura, I.Shimizu,Y. Shimizu,J.Shirai,F. Suekane, T. Mitsui,K.Nakajima,Nakamura,M. K. Inoue,Y. Kibe,Y. Kishimoto,M.Koga,Y. Minekawa, S. Abe,Enomoto,K.Furuno,Y. Gando,H.Ikeda, IPMU10-0037 Entropic AcceleratingUniverse, Smoot, Damien Easson,PaulH.FramptonandGeorge F. IPMU10-0036 Astrophys. J.,arXiv:1001.2934[astro-ph] GHz, Microwave Background PowerSpectrumat148 Measurement ofthe600< The AtacamaCosmologyTelescope: A J. Fowleretal, IPMU10-0035 Astrophys. J.,arXiv:0907.0461[astro-ph] Profiles andFirstSZClusterMaps, The AtacamaCosmologyTelescope (ACT):Beam A. Hincksetal, IPMU10-0034 ℓ <8000Cosmic

105 Preprints 106 Preprints waves from kinksoninfinitecosmicstrings, B-mode polarizationinducedbygravitational Nakayama, Masahiro Kawasaki,KoichiMiyamoto,Kazunori IPMU10-0046 arXiv:1003.3155 [hep-ph] Aspects ofNon-minimalGaugeMediation, Satoshi Shirai,MasahitoYamazaki, KazuyaYonekura, IPMU10-0045 [astro-ph] Phys. Rev. Lett.104,141102(2010),arXiv:0912.3976 rays produced bydistantblazars, photonsandneutrinosfromSecondary cosmic John F. Beacom, Warren Essey, OlegE.Kalashev, AlexanderKusenko, IPMU10-0044 Top QuarksasaWindowtoStringResonances, Dong Zhe,Tao Shiu, Han,Min-xinHuang,Gary IPMU10-0043 perturbations beyonddeltaNformalism, Non-Gaussianity ofsuperhorizoncurvature Yoshiharu Tanaka, Yu-ichi Takamizu, ShinjiMukohyama,MisaoSasaki, IPMU10-0042 to Supergravity, Supersymmetric NonlinearSigmaModelsCoupled T. KugoandT.T. Yanagida, PMU10-0052 finite field, On twohigherChowgroups ofaschemeover Satoshi Kondo,SeidaiYasuda, IPMU10-0051 higher Chowgroups, Product structures inmotiviccohomology and Satoshi Kondo,SeidaiYasuda, IPMU10-0050 arXiv:1003.2420 [astro-ph] Maps, Decomposition ofSpectrafrom RedshiftDistortion Yong-Seon Song,IsshaKayo, IPMU10-0049 Primordial BlackHolesConstituteAllDarkMatter, Paul Howard Frampton, IPMU10-0048 Black HolesConstituteAllDarkMatter, Paul Howard Frampton, IPMU10-0047 13. meeting. ■ its scientific importance, but also as a a as government also the but convince importance, to scientific efforts its persistent our of result of recognition a as just not TechnologyPolicy and Science for Council the by proposal SuMIRe physics andastrophysics laboratories. particle at working specialists communication of network worldwide a is which collaboration InterAction of meeting a hosted we April, activity.In Faculty Science UT whole a of part a was students female for program The communication. of type this of result a as institutions other with hosted jointly were lectures public our of Some abroad. and Japan in both organizations students. school high for Physics'' Modern and Mathematics Modern of Encounter ''New camp science a hosted We students. school high and school high junior female for event discussion and tour a hosted We mathematics. and physics into students school high and school high junior curiousabouttheuniverse andanxioustobepartofourscientificquest. very Weis public general that noticing been have successful. very been have lectures public our of all now, to Up speakers. the with directly talk to able were attendants that so lecture the after time discussion of plenty a with lectures public our of all organized We investigators. principal and director center the including institute the of researchers best very putting often programs, outreach of variety a and lectures public through public general to pursuing are we science the of excitement and importance the IPMU hostedInterActioncollaboration Our effort in outreach program is producing visible results. We view the approval of the of approval the view Weresults. visible producing is program outreach in effort Our other of groups relation public with communication active have to began We year,This outreachthe started we program arewhich toward aimed specifically attracting We have been trying hard to convey to hard trying been have We

Public Communications Outreach and from peoplewhoattendedouroutreach program. which of some IPMU, of support in government this process, more than900letterswere senttothe During institute. our to minimal November,was in place took that programs, research funded government- review Hearing''to Unit Revitalization ''Government publicized widely a from Effect Japan. of basis technological and scientific the strengthen to potential great have measurements astronomical precision high that communities and audience duringapubliclecture. ■ Hitoshi Murayamaanswersquestionsfromthe

107 Outreach and Public Communications 108 Outreach and Public Communications 12. 11. 10. 9. 8. 7. 6. 5. 4. 3. 2. 1. We hostedthefollowingpubliclectures. Public Lectures

January 20, February 20,March 20,February January 6,2010,Science CafeatTama RokutoScineceMuseum Wrinkles andSeeds oftheUniverse,HitoshiMurayama Searching forDarkMatter-darkhoarseof theuniverse-,Masahiro Takada Miracle ofStringTheory, ShigekiSugimoto Campus Komaba 2009, 20, December Yoshida, Naoki Universe, the of Age Dark Exploring Tokyo International Forum 2009, 6, December Murayama, Hitoshi End?, Ever Universe the Will - 2009 SORAHAKU October 30,2009,KashiwaCampus(UT OpenHouse) Takada,Masahiro Lensing, Gravitational with Universe the of Sector Dark the Seeing October 10,2009,Tokyo (ICRR-IPMUJointPublicLecture) Universe seenfrom Underground Kamiokande,MasayukiNakahata Further thantheEdgeofUniverse,HitoshiMurayama Campus Komaba 2009, 13, July Murayama, Hitoshi Universe), the into (Looking ''Soramiru'' ofMilkyWayA Story Galaxy, NaokiYoshida, July7,2009,Kashiwa (Fujiwara Seminar''Worldwide NetworkforGravitationalWave'') Tokyo 2009, 30, June Sato, Katsuhiko Waves, Gravitational with Universe the Exploring 2009 The DarkSideoftheUniverse,MichaelTurner (Univ. Chicago),KashiwaCampus,June24, April 25,2009,Yasuda Hall TokuiMurayama, Hitoshi Holes, Black and Bang Big the universe, the in singularities The - (ICRR-IPMU JointPublicLecture ''Let'sTalk aboutthe Universe'') Kashiwa 2009, 18, April Yoshida, Naoki Universe, Dark from Galaxies and Stars of Birth April 18,2009,Tsukuba (IPMU-KEKSpecialTalk ShowonParticlePhysics) Antimatter,Missing - Universe Murayama, the Hitoshi of History the in Magic Biggest The Programs forJuniorHighSchoolandStudents IPMU NEWSandVideo Clips and theirparents. ■ website. the on minute, one just in public general to terms scientific technical explain scientists IPMU which in clips, video short more 3 broadcasted We topics. researchrelated interesting feature also They members. new of introduction highlight, research seminars, and conferences hosted mathematics of subject the bring to important also is It researchers. female IPMU including scientists with discussion and lectures by followed was tour The event. the joined parents their and students 20 Some violation. CP of theory Kobayashi-Maskawa of verification experimental of site the KEK, at accelerator B-factory the tour to (optional) parents their and students school high and school high junior female for event special a project, Faculty Science UT of part a as the sums of three inner angles of the triangle being different from 180 degrees, or to ''count infinity'' usingatoymodelforBoseparticlesandFermi particles. to or degrees, 180 from different being triangle the of angles inner three of sums the in result which geometries different learn to fascinated were students The 20. only of capacity the for Japan over all from applications enthusiastic of number large a receive to surprised pleasantly were We 2010. March in students school high for mathematics of camp science a JST, with jointly hosted, we step first a As trend. this reverse to role challenging a play to want own. its We attractive of research an subject as not but fields, other problemsin solving for tool a or requirements as just mathematics study today Japanese young of majority that concern a expressed report government recent A students. young for especially program outreach into Program of tour and discussion for female students female for discussion and tour of Program We published 3 editions of IPMU news, covering a wide range of information including information of range wide a covering news, IPMU of editions 3 published We Attracting femalestudentstoscienceisanimportanttaskforus.InAugust,weorganized, encounter ofmodernmathematicsandphysics'' ■ Science camp for high school students ''New students school high for camp Science

109 Outreach and Public Communications 110 Outreach and Public Communications 2009] joined the coffee break at a June conference. [June [June conference. June a at break coffee the joined assist our work indealing with foreign staff and visitors, ■ Focus Week that was held in the middle of swine flu flu outbreak.[May 2009] swine of middle the in held was that Week Focus ■ Communications inDifferent Ways Members of IPMU volunteer group, who regularly regularly who group, volunteer IPMU of Members IPMU staff took extra precaution at a May 2009 2009 May a at precaution extra took staff IPMU their work while visiti while work their IPMU researchers of various nationalities who explained ■ [July 2009] Yoshida's explanation about a miracle of the eclipse. eclipse. the of miracle a about explanation Yoshida's ■ right next to Kashiwa campus. [May 2009] Children from Toyofuta Elementary School listen to listen SchoolElementary Toyofuta from Children Children of Matsuba kindergarten listen to Naoki Naoki to listen kindergarten Matsuba of Children ng Tokatsu Techno Plaza located Plaza Techno Tokatsu ng 2010] [February building. new the for ceremony inauguration orchestra at the reception which was held after the the after held was which reception the at orchestra ■ nursery. [December2009] party of ''Donguri Hoikuen'', the Kashiwa Campus Campus Kashiwa the Hoikuen'', ''Donguri of party ■ Mark VaginsposedasaSantaClausatChristmas Simeon Hellerman conducts newly formed IPMU IPMU formed newly conducts Hellerman Simeon ■ 2010] Physics - An Art Exhibition at a Science Lab - .'' [January IPMU Arts Society held ''Searching for the Other Other the for ''Searching held Society Arts IPMU

111 Outreach and Public Communications 112 Outreach and Public Communications IPMU IPMU Annual Report ANNUAL REPORT 2009 2009 April 2009 — March 2010

April 2009 — March 2010 Institute for the Physics and Mathematics of Universe (IPMU)

Institute for the Physics and Mathematics of the Universe (IPMU) The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583, Japan Tel: +81-4-7136-4940 Fax: +81-4-7136-4941 http://www.ipmu.jp/