hosted by IPMU was held on 17 - 21 with new projects. The success of the News December 2007. The workshop,“ Focus workshop also clarified the importance Week on LHC Phenomenology”, was of follow-up visitor programs, such as organized by Mihoko Nojiri (PI of IPMU) one month stays to finalize the projects and held at the IPMU, Research Center started in this meeting.” Building, on the Kashiwa campus. Many theorists found the discussion The Large Hadron Collider (LHC) at with experimentalists extremely CERN in Switzerland will start operating important, and vice verse.“ We in 2008. The aim of the meeting was to developed a consensus that it is bring together leading experimentalists important to set a series of workshops and phenomenologists working on LHC, to understand phenomena at the LHC to come up with new idea on physics and to maximize the performance of beyond the standard model. To reach the new physics searches,”remarked Launch of IPMU this goal, it is necessary to understand Nojiri. The University of Tokyo’s newly phenomena in the standard model: founded Institute for the Physics and deep theoretical understanding of the Mathematics of the Universe (IPMU) , standard model, and thus processes was launched on October 1, 2007. and responses involved in the LHC IPMU has been approved as one of the experiments, is essential to identify World Premier International Research effects of the new physics in the Center Initiatives (WPI) of the Ministry experiments. of Education, Culture, Sports, Science The following invited speakers with a and Technology (MEXT). IPMU is an range of expertise were invited. Patrick international research institute. Hitoshi Meade and Maxim Perelstein are from Murayama, MacAdams Professor of the new physics side; Jay Wacker, Tilman Hirosi Ooguri wins the Eisenbud Physics at University of California, Plehn, and Chien - Peng Yuan have Prize Berkeley, was appointed as its founding strong backgrounds in both new physics The American Mathematical Society director. The goal of the institute is and QCD (Quantum ChromoDynamics); (AMS) announced on January 7, 2008, to discover the fundamental laws of Steffen Schumann is a QCD expert; that Hirosi Ooguri, a PI of IPMU, is a co- nature and to understand the universe Giacomo Polesello and Tomasso Lari are recipient of the first Leonard Eisenbud from the synergistic perspectives of experimentalists who provide ideas on Prize for Mathematics and Physics. mathematics, statistics, theoretical and experimental reality, and Teruki Kamon The AMS Eisenbud prize was experimental physics, and astronomy. puts the LHC experiments into the established to honor work that has On January 1, 2008, Hitoshi Murayama cosmological context. strengthened the connection between became the full-time director of IPMU. It is all too often that workshops mathematics and physics, and is gather scientists to present their awarded only once every three years. results yet leave no time for fruitful Ooguri became the first winner of the discussion. To overcome this, the focus prize, together with Andrew Strominger week followed the format propose and Cumrun Vafa of Harvard University. by Hitoshi Murayama. In the morning The award ceremony on January 7 was the participants had a few long talks, held during the Annual Meeting of the and in the afternoon they had time for AMS in San Diego, California. intense discussions. On the second day The prize was awarded to them for the workshop was held with 11 talks by their study on properties of black holes contributors.“ The format worked very using string theory and the forefront of well,” commented Murayama,“ many six-dimensional geometry. Focus Week: LHC Phenomenology found the discussion extremely useful In 1974, Stephen Hawking of News The first international workshop for their research, and indeed came up Cambridge University shocked the

25 physics community worldwide by characteristic feature -- a combination will present various programs at the predicting that mysterious black holes of slightly bluer and redder lights than Subaru telescope. Karl Jakobs of Freiburg are not entirely black but emit their heat its original color -- when viewed from University will address particle physics, in the form of light or particles and may the equatorial direction perpendicular focusing on the LHC. Art MacDonald even completely evaporate. However, to the direction of the strong explosion. from Sudbury Neutrino Observatory the origin of their heat remained a big They found that at least five among will discuss neutrino physics. Nicolai puzzle. 18 supernovae showed this feature. Reshetikhin from University of California, Ooguri, Strominger, and Vafa used Another four supernovae also showed Berkeley, will talk on integrable systems string theory and the forefront of hints of such a characteristic feature. and physics. Yoichiro Suzuki from the higher-dimensional geometry to study Considering that pencil-like explosions Institute for Cosmic Ray Research, the properties of small black holes that look round if they are viewed head-on, University of Tokyo, will review neutrino were beyond the reach of Hawking’s the probability of seeing the feature of physics and dark matter. Simon White theory. They showed that the unseen pencil-like explosions viewed sideways from the Max-Planck-Institute for six dimensions of space explain the indicates that all supernovae are not Astrophysics will provide astrophysics origin of the mysterious heat of black round. This is the first observational background related to IPMU researches. holes. Their achievement demonstrated confirmation that supernovae are in Shing-Tung Yau, a Fields medalist the close connection between general not round. The original work from Harvard University, will describe the frontiers of mathematics and was published in the January 31, 2008 differential geometry and physics. fundamental questions in physics.“ This issue of Science Express (the online James Siegrist from Lowrence Berkeley prize is exciting since it reaffirms my edition of Science). National Laboratory will mention on belief that we need both mathematics collaborations including IPMU. and physics to understand our universe, The symposium is preceded by Opening Symposium and encourages our efforts to jump- a reception on March 10, that will start research activities at IPMU,”said The Opening Symposium of IPMU celebrate the foundation of IPMU. Ooguri. is to be held on March 11 and 12, 2008, at the Media Hall, Kashiwa Focus Week: Neutrino Mass IPMU scientists discover that Library, the University of Tokyo. The supernovae are not round symposium aims to address all areas of IPMU has announced that they On February 1, 2008, Keiichi Maeda, research at IPMU and to discuss future will host the second“ Focus Week” an assistant professor of IPMU, and an directions, especially on how to realize organized by Hitoshi Murayama of international team including Ken’ichi the synergism of different research IPMU, on March 17 to 21, 2008. The Nomoto, a principal investigator of areas the physics, mathematics, and topic of the Focus Week is“ Neutrino IPMU, reported that they had uncovered astronomy. Mass.” It will follow the format of the the shape of core-collapse supernovae. For this purpose, IPMU has succeeded first Focus Week, i.e., intentionally leave They found that supernovae are in gaining the participation of leaders plenty of time with no schedule so not round, but rather pencil-like. The in the related fields from all over the that participants can exchange ideas, result sheds light on actively debated world. John Ellis at CERN will address understand each others’work, and unresolved topics in astrophysics: the particle physics. Kenji Fukaya of Kyoto spawn new collaborations. explosion mechanisms of supernovae University will cover topics on algebraic The“ Focus Week: Neutrino Mass” and gamma-ray bursts. topology and physics. Richard Gaitskell is devoted to the elusive questions of They used the Subaru Telescope to from Brown University will discuss direct neutrino mass, and will gather experts perform spectroscopy and to divide dark matter search. Gian Giudice of from various different areas. The the light from supernovae into different CERN will address particle physics. David following speakers are scheduled to colors. The strength of the light as Gross, Nobel Laureate at Kavli Institute take part. Pasquale Di Bari will give a a function of its color then told the for Theoretical Physics, University of talk on Leptogenesis. Andrea Giuliani researchers what the shape of the California, Santa Barbara, will give will address Neutrinoless Double Beta emitting supernova material should overviews on string theory. Masahiko (bb0nu)- Decay Experiments. Alex be. A pencil-like explosion predicts a Hayashi of the Subaru telescope, NAOJ, Kusenko will discuss Sterile Neutrinos

26 IPMU News No. 1 March 2008 in Cosmology. Hitoshi Murayama (Tohoku Univ.) 13.“Gauge Theory, Gravity and Twistor will review Neutrino Oscillation Date: 8 January 2008 String Scattering Amplitudes” Phenomenology. Elena Pierpaoli will give 3.“ Structure formation in the early Speaker: Mohab Abou Zeid (KEK) a talk on the Galaxy Power Spectrum. Universe” Date: 20 February 2008 Serguey Petcov will address Neutrino Speaker: Naoki Yoshida 14.“ TBD” Masses, Mixing, Majorana CP-Violation, (Nagoya Univ.) Speaker: Alexandre Kozlov bb0nu-Decay and Leptogenesis. George Date: 9 January 2008 (Tohoku Univ.) Raffelt will give a talk on Supernova 4.“ Holography and entanglement Date: 28 February 2008 Neutrinos. Hamish Robertson will entropy” describe the KATRIN (Karlsruhe Tritium Speaker: Tadashi Takayanagi IPMU Komaba Seminar Neutrino) Experiment. Vadim Rodin will (Kyoto Univ.) address bb0nu Nuclear Matrix Elements. Date: 10 January 2008 Please contact the organizers for Anze Slosar will discuss the Lyman 5.“ Discriminating spin through further details: Akishi Kato and Toshitake Alpha Forest Power Spectrum and its quantum interference” Kohno. The following seminars have Use in the Cosmological Context. Speaker: Matthew Buckley been held or are scheduled to be held In addition to these talks, one (UC Berkeley / IPMU) (as of 12 February 2008). afternoon will be set aside for Date: 16 January 2008 1. “Topics on string theory, mirror contributed talks aimed at encouraging 6.“ BOSS-The Baryon Oscillation symmetry, and Gromov-Witten participation. Spectroscopic Survey in SDSS-III” invariants” Speaker: Jim Gunn (Princeton Univ.) Speaker: Shinobu Hosono (Univ. Tokyo) Date: 28 January 2008 Date: 15 October 2007 Seminars 7. “The mass function of local active 2.“ Some examples of triangulated IPMU frequently hosts seminars black holes” and/or A∞-categories related to given by researchers from all over the Speaker: Jenny Greene homological mirror symmetry” world. IPMU seminars are regularly held (Princeton Univ.) Speaker: Hiroshige Kajiura on every Wednesday, 3:30 pm at the Date: 1 February 2008 (RIMS / Kyoto Univ.) IPMU, Kashiwa campus. IPMU Komaba 8.“ AGNs and suppressed star for- Date: 29 October 2007 seminars on Mathematical Physics mation in massive galaxies at z ~ 2.5” 3.“ Kontsevich quantization of Poisson are held in the Mathematical Science Speaker: Mariska Kriek manifolds and Duflo isomorphism” building, Komaba campus. We also (Princeton Univ.) Speaker: Michäel Pevzner frequently hold seminars which do not Date: 1 February 2008 (U. Reims / U. Tokyo) follow the regular schedule. 9.“Moduli stabilization, F-term uplifting Date: 26 November 2007 and sequestering in supergravity 4.“ Deligne conjecture and the Drinfeld models” double” IPMU Seminar Speaker: Hiroyuki Abe (Yukawa Inst.) Speaker: Dmitry Kaledin Please contact the following Date: 6 February 2008 (Steklov Inst. / U. Tokyo) organizers for further details: Fuminobu 10.“Ultralight Gravitino at the LHC” Date: 10 December 2007 Takahashi, Keiichi Maeda, and Yukinobu Speaker: Koichi Hamaguchi 5.“ Analytic torsion for Calabi-Yau Toda. The following seminars have been (Univ. Tokyo) threefolds” held or are scheduled to be held (as of Date: 13 February 2008 Speaker: Ken-ichi Yoshikawa 12 February 2008). 11“. Direct and Indirect Dark Matter (Univ. Tokyo) 1. “String Theory and QCD” Search Experiment” Date: 17 December 2007 Speaker: Shigeki Sugimoto Speaker: Yuki Shimizu (Waseda Univ.) 6.“ How to lift a construction by Hiroshi (Nagoya Univ.) Date: 14 February 2008 Inose to conformal field theory” Date: 30 October 2007 12.“GADZOOKS! A Potential Super- Speaker: Katrin Wendland 2.“ Gravitational lensing and dark Kamiokande Upgrade” (Univ. Augrburg)

matter and dark energy” Speaker: Mark Vagins (UC Irvine) Date: 12 February 2008 News Speaker: Masahiro Takada Date: 19 February 2008

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