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Dark Matter and the Dinosaurs: the Astounding Interconnectedness of the Universe Pdf, Epub, Ebook
DARK MATTER AND THE DINOSAURS: THE ASTOUNDING INTERCONNECTEDNESS OF THE UNIVERSE PDF, EPUB, EBOOK Lisa Randall | 432 pages | 05 Jan 2017 | Vintage Publishing | 9780099593560 | English | London, United Kingdom Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe PDF Book Randall rebuts such criticism by noting that it could be "simpler to say that dark matter is like our matter, in that it's different particles with different forces", adding "the other answer is that the world's complicated, so Occam's razor isn't always the best way to go about things. There was a problem filtering reviews right now. Creo que su lectura es muy recomendable. So if, in fact, there is this dense, dark disk, there should be evidence for it in this data, which will be really exciting. Amazon Second Chance Pass it on, trade it in, give it a second life. Retrieved 12 December Or, if you are already a subscriber Sign in. Randall: I mean there is, of course, also the richness of how the pieces fit together, which is the wonderful stuff that we observe in the world. And second, once we have them, what are all the consequences? Randall conjectures that dark matter may have indirectly led to the extinction of dinosaurs. And those are worth drilling down and really focusing on. Introduction is nice and smooth. And we can see how that fits together and then how that came about and try to understand that with science, over time. Baird, Jr. Although I am left confused to wether there is evidence for periodicity or not. -
DPF Newsletter - December 1999
DPF Newsletter - December 1999 In This Issue... DPF Elections DPF Symposia Stanley Wojcicki was elected Vice-Chair of DPF in this year's election. Peter Meyers was elected DOE & HEPAP News Divisional Councillor. The new Executive Committee members are Janet Conrad and Bill NSF News Carithers. APS Prize Winners The members of the 2000 DPF Executive Committee and the final years of their terms are New APS Fellows Chair: Eugene Beier (2000). ICFA Statement Chair-Elect: Chris Quigg (2000). Vice-Chair: Stanley Wojcicki (2000). DPF Committees Past Chair: Howard Gordon (2000). Secretary-Treasurer: Catherine Newman- Holmes (2000). Proceedings of DPF 99 Now Division Councilor: Sally Dawson (2002), Available on the Web Peter Meyers(2003). Executive Committee Members: Vernon Barger (2001), Bill Carithers (2002), Janet Proceedings of the 1999 DPF Conrad (2002), Glennys Farrar (2001), meeting held in January, 1999 at Nicholas Hadley (2000) and Donna Naples UCLA are now available on the (2000). Web at http://www.dpf99.library.ucla.edu/. We would like to take this opportunity to thank These proceedings were published DPF Executive Committee members whose terms only electronically. are expiring in 1999: Howard Georgi (Past Chair), Robert Cahn (Divisional Councillor) and Pat Burchat and Kay Kinoshita (Executive Committee members). We also express our appreciation to all DPF - 2000 who agreed to run for DPF office this year. We were fortunate to have an excellent slate of DPF 2000 will be held August 9 - candidates. 12, 2000, at Ohio State University in Columbus, Ohio. The program This was DPF's first experience with electronic is being developed. -
Prizes, Fellowships and Scholarships
ESEARCH OPPORTUNITIES ALERT Issue 26: Volume 2 R SCHOLARSHIPS, PRIZES AND FELLOWSHIPS (Quarter: July - September, 2016) A Compilation by the Scholarships & Prizes RESEARCH SERVICES UNIT Early/ Mid Career Fellowships OFFICE OF RESEARCH, INNOVATION AND DEVELOPMENT (ORID), UNIVERSITY OF GHANA Pre/ Post-Doctoral Fellowships Thesis/ Dissertation Funding JUNE 2016 Issue 26: Volume 2: Scholarships, Prizes and Fellowships (July – September, 2016) TABLE OF CONTENT OPPORTUNITIES FOR JULY 2016 DAVID ADLER LECTURESHIP AWARD ............................................................................................................ 15 HAYMAN PRIZE FOR PUBLISHED WORK PERTAINING TO TRAUMATISED CHILDREN AND ADULTS ..................................................................................................................................................................... 15 HANS A BETHE PRIZE ........................................................................................................................................... 16 TOM W BONNER PRIZE IN NUCLEAR PHYSICS ............................................................................................ 17 HERBERT P BROIDA PRIZE .................................................................................................................................. 18 OLIVER E BUCKLEY PRIZE IN CONDENSED MATTER PHYSICS ............................................................... 18 DANNIE HEINEMAN PRIZE FOR MATHEMATICAL PHYSICS.................................................................. -
Search for New Physics with Top Quark Pairs in the Fully Hadronic Final State at the ATLAS Experiment
Dissertation submitted to the Combined Faculties of the Natural Sciences and Mathematics of the Ruperto-Carola-University of Heidelberg, Germany for the degree of Doctor of Natural Sciences Put forward by Mathis Kolb born in Heidelberg Oral examination: November 21, 2018 Search for new physics with top quark pairs in the fully hadronic final state at the ATLAS experiment Referees: Prof. Dr. André Schöning Prof. Dr. Tilman Plehn Search for new physics with top quark pairs in the fully hadronic final state at the ATLAS experiment Fully hadronic final states containing top quark pairs (tt) are investigated using proton- proton collision data at a center of mass energy of 13 TeV recorded in 2015 and 2016 by the ATLAS experiment at the Large Hadron Collider at CERN. The bucket algorithm suppresses the large combinatorial background and is used to identify and reconstruct the tt system. It is applied in three analyses. A model independent search for new heavy particles decaying to tt using 36 fb−1 of data is presented. The analysis concentrates on an optimization of sensitivity at tt masses below 1:3 TeV. No excess from the Standard Model prediction is observed. Thus, upper limits at 95% C.L. are set on the production cross section times branching ratio of 0 benchmark signal models excluding e.g. a topcolor assisted technicolor ZTC2 in the mass range from 0:59 TeV to 1:25 TeV. The prospects of a search for the production of the Higgs boson in association with tt using 33 fb−1 of data recorded solely in 2016 are studied. -
2018 APS Prize and Award Recipients
APS Announces 2018 Prize and Award Recipients The APS would like to congratulate the recipients of these APS prizes and awards. They will be presented during APS award ceremonies throughout the year. Both March and April meeting award ceremonies are open to all APS members and their guests. At the March Meeting, the APS Prizes and Awards Ceremony will be held Monday, March 5, 5:45 - 6:45 p.m. at the Los Angeles Convention Center (LACC) in Los Angeles, CA. At the April Meeting, the APS Prizes and Awards Ceremony will be held Sunday, April 15, 5:30 - 6:30 p.m. at the Greater Columbus Convention Center in Columbus, OH. In addition to the award ceremonies, most prize and award recipients will give invited talks during the meeting. Some recipients of prizes, awards are recognized at APS unit meetings. For the schedule of APS meetings, please visit http://www.aps.org/meetings/calendar.cfm. Nominations are open for most 2019 prizes and awards. We encourage members to nominate their highly-qualified peers, and to consider broadening the diversity and depth of the nomination pool from which honorees are selected. For nomination submission instructions, please visit the APS web site (http://www.aps.org/programs/honors/index.cfm). Prizes 2018 APS MEDAL FOR EXCELLENCE IN PHYSICS 2018 PRIZE FOR A FACULTY MEMBER FOR RESEARCH IN AN UNDERGRADUATE INSTITUTION Eugene N. Parker University of Chicago Warren F. Rogers In recognition of many fundamental contributions to space physics, Indiana Wesleyan University plasma physics, solar physics and astrophysics for over 60 years. -
Understanding a Warped Cosmos
Lisa Randall. “One challenge today is to see what you can do with large amounts of data, to study fundamental properties, not just questions of how electromagnetism gives rise to certain things. Can we actually see deviations from what you would predict in conventional theories?” Rami Shllush Understanding a warped cosmos What’s the connection between dinosaurs and dark matter? What is the glue that holds the universe together? Is there a fourth - and fifth - dimension? These are just some of the questions that occupy Lisa Randall, the first female physicist to get tenure at Princeton, Harvard and MIT ■ ״ ״r* י •• 1 י׳ The CERN facility, near Geneva. “We need higher-energy machines and particle Illustration of a large asteroid colliding with Earth over the Yucatan Peninsula, in accelerators,” says Randall, “but to really see new things, we need even more Mexico. The impact of such occurrences are thought to have led to the death of the powerful machines.” Richard Juillian/AFP dinosaurs some 65 million years ago. Mark Garlick/Science Photo Libra Ido Efrati in the sciences. In 2016 he mystery of the universe,be seen as evidence that dark matter Over the years, studies have specializes interview with The New she and the many riddles that re- interacted in some way with hydrogen mapped the presence of dark matter Yorker, related that in her teens she had fre- main open about itcan be ex- atoms, thus leadingto the loweringof in various placesin the universe,in- the of the dark matter. our emplifiedin myriad ways. temperature eludingin the center of galaxy,the quent confrontations with her mother, to One of the most frustratingPhysicistsresponding the article Milky Way. -
DPF NEWSLETTER - April 15, 1996
DPF NEWSLETTER - April 15, 1996 To: Members of the Division of Particles and Fields From: Jonathan Bagger, Secretary-Treasurer, [email protected] 1995 DPF Elections Howard Georgi was elected Vice-Chair of the DPF. Tom Devlin and Heidi Schellman were elected to the Executive Committee. George Trilling was elected as a Division Councillor. The current members of the DPF Executive Committee and the final years of their terms are Chair: Frank Sciulli (1996) Chair-Elect: Paul Grannis (1996) Vice-Chair: Howard Georgi (1996) Past Chair: David Cassel (1996) Secretary-Treasurer: Jonathan Bagger (1997) Division Councillor: Henry Frisch (1997), George Trilling (1998) Executive Board: Sally Dawson (1996), Tom Devlin (1998), Martin Einhorn (1997), John Rutherfoord (1997), Heidi Schellman (1998), Michael Shaevitz (1996) Call for Nominations: 1996 DPF Elections The 1996 Nominating Committee is hard at work. Please send suggestions for candidates to the Chair, Abe Seiden of Santa Cruz ([email protected]). The other members of the Nominating Committee are Melissa Franklin, Robert Jaffe, Michael Murtagh, Helen Quinn, and Bill Reay. DPF Members are also entitled to nominate candidates by petition. Twenty signatures from DPF members are required. Nominations will be accepted by Jonathan Bagger until May 15, 1996. Snowmass 1996: New Directions for High Energy Physics The 1996 Snowmass Workshop on New Directions in High Energy Physics will be held in Snowmass, Colorado, from June 24 to July 12, 1996. Arrival, registration, and a reception will be on June 24. Full-day plenary sessions will be held on June 25-26 and July 11-12. This workshop will provide an opportunity to begin to develop a coherent plan for the longer term future for U.S. -
Extraordinary Year for Gates Graduate Awards P.3 Staff Awards & Luncheon P.4 in January, President Obama Named Sylvester James Gates, Jr
the ONLINE PHOTONNEWSLETTER FROM UMD DEPARTMENT OF PHYSICS 2012‐2013 Ryan K Morris/Naonal Science & Technology Medals Foundaon this issue AAAS Fellows P.2 Extraordinary Year for Gates Graduate Awards P.3 Staff Awards & Luncheon P.4 In January, President Obama named Sylvester James Gates, Jr. as one of this New Faces P.5 year's recipients of the Naonal Medal of Science. The Naonal Medal of Science and the Naonal Medal of Technology and Innovaon are the highest honors be‐ stowed by the United States Government upon sciensts, engineers and inven‐ Gates on C‐SPAN’s Q & A tors. The honor was one of four in an extraordinary year for Gates. Most recently, Gates was awarded the 2013 Mendel Medal by Villanova Universi‐ Jim Gates discusses science educaon, string theory, working ty. The honor recognizes pioneering sciensts who have demonstrated, by their with the President almost becom‐ lives and their standing before the world as sciensts, that there is no intrinsic ing an astronaut and being mistak‐ conflict between science and religion. Addionally, Gates was one of 84 U.S. re‐ en for Morgan Freeman on C‐ searchers and 21 foreign associates elected to the Naonal Academy of Science. SPAN’s Q & A The interview Elecon to the academy is considered one of the highest honors that can be ac‐ transcript is available on the Q & A website or watch the video at corded a U.S. scienst or engineer. And in January he was named a University Sys‐ tem of Maryland (USM) Regents Professor, the System's most prominent faculty hp://www.c‐spanvideo.org/ recognion. -
Conceptual Investigations of a Trigger Extension for Muons from Pp Collisions in the CMS Experiment
Conceptual investigations of a trigger extension for muons from pp collisions in the CMS experiment Von der Fakult¨at fur¨ Mathematik, Informatik und Naturwissenschaften der RWTH Aachen University zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigte Dissertation vorgelegt von Diplom-Physiker Yusuf Erdogan aus Istanbul Berichter: Universit¨atsprofessor Dr. rer. nat. Achim Stahl Universit¨atsprofessor Dr. rer. nat. Thomas Hebbeker Tag der mundlic¨ hen Prufung¨ : 24. Februar 2015 Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfu¨gbar. Kurzfassung Der Large Hadron Collider wird ab 2023 an seine Experimente fun¨ f bis zehn mal mehr Lu- minosit¨at als der derzeitige Designwert von 1034 cm−2s−1 liefern k¨onnen. Diese Verbes- serung wird die Messung von physikalischen Prozessen mit sehr kleinen Wirkungsquer- schnitten erlauben. Jedoch wird bei diesen hohen Luminosit¨aten, aufgrund von Pile-up Wechselwirkungen, die Belegung des CMS-Detektors sehr hoch sein. Dies wird einer- seits einen systematischen Anstieg von Triggerraten fur¨ einzelne Myonen verursachen, Andererseits werden die Fehlmessungen von Myon-Transversalimpulsen, verst¨arkt durch die begrenzte Impulsaufl¨osung des Myon-Systems, fur¨ hohe Impulswerte dominant sein. In diesem Bereich flacht die Verteilung der Triggerrate ab, was die Beschr¨ankung der Triggerrate durch eine Schwelle der Transversalimpulse erschwert. Außerdem wird die Qualit¨at des Triggers fu¨r einzelne Myonen durch koinzidente Teilchendurchg¨ange ver- ringert, da diese zu Doppeldeutigkeiten in den innersten Myonkammern fuh¨ ren k¨onnen. Im Rahmen der Ver¨offentlichung [2] wurde im Jahr 2007 ein Muon Track fast Tag (MTT) genanntes Konzept vorgestellt, um diese Trigger-Herausforderungen zu adressieren. Die, in dieser Arbeit durchgefuh¨ rten Studien sind in drei Abschitte unterteilt. -
N = 1 Field Theory Duality from M-Theory
hep-th/9708015 BUHEP-97-23 N = 1 Field Theory Duality from M-theory Martin Schmaltz and Raman Sundrum Department of Physics Boston University Boston, MA 02215, USA [email protected], [email protected] Abstract We investigate Seiberg’s N = 1 field theory duality for four-dimensional super- symmetric QCD with the M-theory 5-brane. We find that the M-theory configuration for the magnetic dual theory arises via a smooth deformation of the M-theory config- arXiv:hep-th/9708015v2 27 Aug 1997 uration for the electric theory. The creation of Dirichlet 4-branes as Neveu-Schwarz 5-branes are passed through each other in Type IIA string theory is given a nice derivation from M-theory. 1 Introduction In the last few years there has been tremendous progress in understanding supersym- metric gauge dynamics and the remarkable phenomenon of electric-magnetic duality [1, 2]. Most of the results were first guessed at within field theory and then checked to satisfy many non-trivial consistency conditions. However, the organizing principle behind these dualities has always been somewhat mysterious from the field theoretic perspective. Recently there has arisen a fascinating connection between supersymmetric gauge dynamics and string theory brane dynamics [3] which has the potential for unifying our understanding of these dualities [4-13]. This stems from our ability to set up configurations of branes in string theory with supersymmetric gauge field theories living on the world-volumes of branes in the low-energy limit. The moduli spaces of the gauge field theories are thereby encoded geometrically in the brane set-up. -
Inside the Perimeter Is Published by Perimeter Institute for Theoretical Physics
the Perimeter fall/winter 2014 Skateboarding Physicist Seeks a Unified Theory of Self The Black Hole that Birthed the Big Bang The Beauty of Truth: A Chat with Savas Dimopoulos Subir Sachdev's Superconductivity Puzzles Editor Natasha Waxman [email protected] Contributing Authors Graphic Design Niayesh Afshordi Gabriela Secara Erin Bow Mike Brown Photographers & Artists Phil Froklage Tibra Ali Colin Hunter Justin Bishop Robert B. Mann Amanda Ferneyhough Razieh Pourhasan Liz Goheen Natasha Waxman Alioscia Hamma Jim McDonnell Copy Editors Gabriela Secara Tenille Bonoguore Tegan Sitler Erin Bow Mike Brown Colin Hunter Inside the Perimeter is published by Perimeter Institute for Theoretical Physics. www.perimeterinstitute.ca To subscribe, email us at [email protected]. 31 Caroline Street North, Waterloo, Ontario, Canada p: 519.569.7600 f: 519.569.7611 02 IN THIS ISSUE 04/ Young at Heart, Neil Turok 06/ Skateboarding Physicist Seeks a Unified Theory of Self,Colin Hunter 10/ Inspired by the Beauty of Math: A Chat with Kevin Costello, Colin Hunter 12/ The Black Hole that Birthed the Big Bang, Niayesh Afshordi, Robert B. Mann, and Razieh Pourhasan 14/ Is the Universe a Bubble?, Colin Hunter 15/ Probing Nature’s Building Blocks, Phil Froklage 16/ The Beauty of Truth: A Chat with Savas Dimopoulos, Colin Hunter 18/ Conference Reports 22/ Back to the Classroom, Erin Bow 24/ Finding the Door, Erin Bow 26/ "Bright Minds in Their Life’s Prime", Colin Hunter 28/ Anthology: The Portraits of Alioscia Hamma, Natasha Waxman 34/ Superconductivity Puzzles, Colin Hunter 36/ Particles 39/ Donor Profile: Amy Doofenbaker, Colin Hunter 40/ From the Black Hole Bistro, Erin Bow 42/ PI Kids are Asking, Erin Bow 03 neil’s notes Young at Heart n the cover of this issue, on the initial singularity from which everything the lip of a halfpipe, teeters emerged. -
Minutes High Energy Physics Advisory Panel October 22–23, 2009 Hilton Embassy Row Washington, D.C
Draft Minutes High Energy Physics Advisory Panel October 22–23, 2009 Hilton Embassy Row Washington, D.C. HEPAP members present: Hiroaki Aihara Wim Leemans Marina Artuso Daniel Marlow Alice Bean Ann Nelson Patricia Burchat Paris Sphicas Lance Dixon Kate Scholberg Graciela Gelmini Melvyn J. Shochet, Chair Larry Gladney Henry Sobel Boris Kayser Maury Tigner Robert Kephart William Trischuk Steven Kettell Herman White HEPAP members absent: Priscilla Cushman Lisa Randall Sarah Eno Sally Seidel Stephen Olson Also participating: Barry Barish, Director, Global Design Effort, International Linear Collider Frederick Bernthal, President, Universities Research Association Glen Crawford, HEPAP Designated Federal Officer, Office of High Energy Physics, Office of Science, Department of Energy Joseph Dehmer, Director, Division of Physics, National Science Foundation Cristinel Diaconu, Directeur de Recherche, IN2P3/CNRS, France Robert Diebold, Diebold Consulting Marvin Goldberg, Program Director, Division of Physics, National Science Foundation Judith Jackson, Director, Office of Communication, Fermi National Accelerator Laboratory Young-Kee Kim, Deputy Director, Fermi National Accelerator Laboratory John Kogut, HEPAP Executive Secretary, Office of High Energy Physics, Office of Science, Department of Energy Dennis Kovar, Associate Director, Office of High Energy Physics, Office of Science, Department of Energy Kevin Lesko, Nuclear Science Division, Lawrence Berkeley National Laboratory Marsha Marsden, Office of High Energy Physics, Office of Science,