Video Interviews with Contemporary Women in Physics and Astronomy Introduction the Videos Compiled Here Include Interviews With
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Penguin Decays of B Mesons
COLO–HEP–395 SLAC-PUB-7796 HEPSY 98-1 April 23, 1998 PENGUIN DECAYS OF B MESONS Karen Lingel 1 Stanford Linear Accelerator Center Stanford University, Stanford, CA 94309 and Tomasz Skwarnicki 2 Department of Physics, Syracuse University Syracuse, NY 13244 and James G. Smith 3 Department of Physics, University of Colorado arXiv:hep-ex/9804015v1 27 Apr 1998 Boulder, CO 80309 Submitted to Annual Reviews of Nuclear and Particle Science 1Work supported by Department of Energy contract DE-AC03-76SF00515 2Work supported by National Science Foundation contract PHY 9807034 3Work supported by Department of Energy contract DE-FG03-95ER40894 2 LINGEL & SKWARNICKI & SMITH PENGUIN DECAYS OF B MESONS Karen Lingel Stanford Linear Accelerator Center Tomasz Skwarnicki Department of Physics, Syracuse University James G. Smith Department of Physics, University of Colorado KEYWORDS: loop CP-violation charmless ABSTRACT: Penguin, or loop, decays of B mesons induce effective flavor-changing neutral currents, which are forbidden at tree level in the Standard Model. These decays give special insight into the CKM matrix and are sensitive to non-standard model effects. In this review, we give a historical and theoretical introduction to penguins and a description of the various types of penguin processes: electromagnetic, electroweak, and gluonic. We review the experimental searches for penguin decays, including the measurements of the electromagnetic penguins b → sγ ∗ ′ and B → K γ and gluonic penguins B → Kπ, B+ → ωK+ and B → η K, and their implications for the Standard Model and New Physics. We conclude by exploring the future prospects for penguin physics. CONTENTS INTRODUCTION .................................... 3 History of Penguins .................................... -
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. -
The Radio Search for Technosignatures in the Decade 2020–2030
Astro2020 Science White Paper The radio search for technosignatures in the decade 2020–2030 Background photo: central region of the Galaxy by Yuri Beletsky, Carnegie Las Campanas Observatory Thematic Area: Planetary Systems Principal Author: Name: Jean-Luc Margot Institution: University of California, Los Angeles Email: [email protected] Phone: 310.206.8345 Co-authors: Steve Croft (University of California, Berkeley), T. Joseph W. Lazio (Jet Propulsion Laboratory), Jill Tarter (SETI Institute), Eric J. Korpela (University of California, Berkeley) March 11, 2019 1 Scientific context Are we alone in the universe? This question is one of the most profound scientific questions of our time. All life on Earth is related to a common ancestor, and the discovery of other forms of life will revolutionize our understanding of living systems. On a more philosophical level, it will transform our perception of humanity’s place in the cosmos. Observations with the NASA Kepler telescope have shown that there are billions of habitable worlds in our Galaxy [e.g., Borucki, 2016]. The profusion of planets, coupled with the abundance of life’s building blocks in the universe, suggests that life itself may be abundant. Currently, the two primary strategies for the search for life in the universe are (1) searching for biosignatures in the Solar System or around nearby stars and (2) searching for technosignatures emitted from sources in the Galaxy and beyond [e.g., National Academies of Sciences, Engineer- ing, and Medicine, 2018]. Given our present knowledge of astrobiology, there is no compelling reason to believe that one strategy is more likely to succeed than the other. -
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. -
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, -
January 26, 2009
INFORMATION Texting, blogging and the like might yet prove beneficial, 3 BIOLOGICAL SCIENCE Avian dads learned doting ways from the dinosaurs, 4 CENTER FOR TEACHING AND LEARNING Lectures, workshops and The Faculty-Staff Bulletin of The Florida State University consultations, 6 and 7 VolumeSTATE 43 • Number 10 January 26 - February 15, 2009 Florida State pays tribute to ‘Year of Science’ ORIGINS ’09 Two-time Pulitzer Prize-winning au- Wilson will join acclaimed Harvard NPR’s “Science Friday,” among many thor and world-renowned biologist E.O. University cosmologist Lisa Randall, others for the program, which begins Wilson will be among the headliners of famed anthropologist Don Johanson (co- March 16. a two-week celebration of what discov- discoverer of “Lucy”, the world’s most Named “Origins ’09: A Celebration eries in science and the humanities have famous fossil), Sean B. Carroll, noted of the Birth and Life of Beginnings,” the meant to modern civilization. biologist and author, and Ira Flatow of event is being sponsored by the Florida State University Office of Research and co-sponsored by the FSU College of Medicine and the Tallahassee Scientific Conference headliners will Society. It’s all part of a tribute to 2009 include, clockwise, E.O. as the Year of Science, a national desig- Wilson, the world’s leading nation inspired by the 200th birthday of Charles Darwin (Feb. 12). naturalist, Harvard physicist Unlike many tributes scheduled Lisa Randall and Ira Flatow, around the nation and world, Florida host of “Science Friday” on State’s program is designed to go be- National Public Radio. -
Curriculum Vitae
CURRICULUM VITAE Raman Sundrum July 26, 2019 CONTACT INFORMATION Physical Sciences Complex, University of Maryland, College Park, MD 20742 Office - (301) 405-6012 Email: [email protected] CAREER John S. Toll Chair, Director of the Maryland Center for Fundamental Physics, 2012 - present. Distinguished University Professor, University of Maryland, 2011-present. Elkins Chair, Professor of Physics, University of Maryland, 2010-2012. Alumni Centennial Chair, Johns Hopkins University, 2006- 2010. Full Professor at the Department of Physics and Astronomy, The Johns Hopkins University, 2001- 2010. Associate Professor at the Department of Physics and Astronomy, The Johns Hop- kins University, 2000- 2001. Research Associate at the Department of Physics, Stanford University, 1999- 2000. Advisor { Prof. Savas Dimopoulos. 1 Postdoctoral Fellow at the Department of Physics, Boston University. 1996- 1999. Postdoc advisor { Prof. Sekhar Chivukula. Postdoctoral Fellow in Theoretical Physics at Harvard University, 1993-1996. Post- doc advisor { Prof. Howard Georgi. Postdoctoral Fellow in Theoretical Physics at the University of California at Berke- ley, 1990-1993. Postdoc advisor { Prof. Stanley Mandelstam. EDUCATION Yale University, New-Haven, Connecticut Ph.D. in Elementary Particle Theory, May 1990 Thesis Title: `Theoretical and Phenomenological Aspects of Effective Gauge Theo- ries' Thesis advisor: Prof. Lawrence Krauss Brown University, Providence, Rhode Island Participant in the 1988 Theoretical Advanced Summer Institute University of Sydney, Australia B.Sc with First Class Honours in Mathematics and Physics, Dec. 1984 AWARDS, DISTINCTIONS J. J. Sakurai Prize in Theoretical Particle Physics, American Physical Society, 2019. Distinguished Visiting Research Chair, Perimeter Institute, 2012 - present. 2 Moore Fellow, Cal Tech, 2015. American Association for the Advancement of Science, Fellow, 2011. -
Supergravity on the Brane
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by CERN Document Server Supergravity on the Brane A. Chamblin∗∗ & G.W. Gibbons DAMTP, Silver Street, Cambridge, CB3 9EW, England (November 23, 1999) We show that smooth domain wall spacetimes supported by a scalar field separating two anti- de-Sitter like regions admit a single graviton bound state. Our analysis yields a fully non-linear supergravity treatment of the Randall-Sundrum model. Our solutions describe a pp-wave propa- gating in the domain wall background spacetime. If the latter is BPS, our solutions retain some supersymmetry. Nevertheless, the Kaluza-Klein modes generate \pp curvature" singularities in the bulk located where the horizon of AdS would ordinarily be. 12.10.-g, 11.10.Kk, 11.25.M, 04.50.+h DAMTP-1999-126 I. INTRODUCTION full dynamics of the domain wall is not treated in detail in the Randall-Sundrum model. In fact gravitating domain walls have a drastic effect on the curvature of the ambi- It has long been thought that any attempt to model ent spacetime and it is not obvious that a simple model the Universe as a single brane embedded in a higher- involving a single collective coordinate representing the dimensional bulk spacetime must inevitably fail because transverse displacement of the domain wall is valid. the gravitational forces experienced by matter on the For these reasons it seems desirable to have a simple brane, being mediated by gravitons travelling in the non-singular model which is exactly solvable. It is the bulk, are those appropriate to the higher dimensional purpose of this note to provide that. -
What Happens When We Detect Alien Life?
SETI research e’ve never heard a peep from aliens. But improved technology is speeding up the search for extra- terrestrial intelligence (SETI), so what happens if today’s silence suddenly gives way to tomorrow’s discovery? Would the world Wrejoice in the news that someone’s out there? Would euphoria engulf humanity, as Nobel Prizes are doled out like after-dinner mints? That’s one view. But many people think the dis- covery would be hushed up as quickly as a Mafia informant, assuming that the public couldn’t handle the news. Or scarier still, kept secret for fear that an unauthorized response would tell a hostile race exactly where to send their interstellar battlewagons. That’s melodramatic enough. But has any serious consideration gone into what happens when our efforts to detect cos- mic intelligence pay off and we find a blip of a signal in the sea of radio noise WHAT HAPPENS WHEN WE DETECT that pours into the SETI antennas? Some think that addressing that question — even in a speculative way — is hubristic at best and wildly pre- sumptuous at worst. After all, SETI scientists have been torquing their telescopes toward celestial targets for ALINF E LI E? more than half a century without ever detecting such a signal. If we Scientists have been listening for signals from extraterrestrial haven’t won the E.T. lottery in all that time, why worry about what would civilizations for decades, but what would they do happen if we got the winning ticket? if they actually heard one? Simple: SETI researchers are buy- ing more tickets all the time, and the by Seth Shostak chances of scoring the big one keep going up. -
Communication with Extraterrestrial Intelligence (CETI), Ed
Exoplanets, Extremophiles, and the Search for Extraterrestrial Intelligence Jill C. Tarter 1.0. Introduction We discovered the very first planetary worlds in orbit around a body other than the Sun in 1991 (Wolzczan and Frail 1992). They were small bodies (0.02, 4.3, and 3.9 times as massive as the Earth) and presented a puzzle because they orbit a neutron star (the remnant core of a more massive star that had previously exploded as a supernova) and it was not clear whether these bodies survived the explosion or reformed from the stellar debris. They still present a puzzle, but today we know of over five hundred other planetary bodies in orbit around hundreds of garden variety stars in the prime of their life cycle. Many of these planets are more massive than Jupiter, and some orbit closer to their stars than Mercury around the Sun. To date we have not found another planetary system that is an exact analog of the Earth (and the other planets of our solar system) orbiting a solar-type star, but we think that is because we have not yet had the right observing instruments. Those are on the way. In the next few years, we should know whether other Earth mass planets are plentiful or scarce. At the same time that we have been developing the capabilities to detect distant Earths, we have also been finding that life on Earth occurs in places that earlier scientists would have considered too hostile to support life. Scientists were wrong, or at least didn’t give microbes the respect they deserve. -
Women in Astronomy: an Introductory Resource Guide
Women in Astronomy: An Introductory Resource Guide by Andrew Fraknoi (Fromm Institute, University of San Francisco) [April 2019] © copyright 2019 by Andrew Fraknoi. All rights reserved. For permission to use, or to suggest additional materials, please contact the author at e-mail: fraknoi {at} fhda {dot} edu This guide to non-technical English-language materials is not meant to be a comprehensive or scholarly introduction to the complex topic of the role of women in astronomy. It is simply a resource for educators and students who wish to begin exploring the challenges and triumphs of women of the past and present. It’s also an opportunity to get to know the lives and work of some of the key women who have overcome prejudice and exclusion to make significant contributions to our field. We only include a representative selection of living women astronomers about whom non-technical material at the level of beginning astronomy students is easily available. Lack of inclusion in this introductory list is not meant to suggest any less importance. We also don’t include Wikipedia articles, although those are sometimes a good place for students to begin. Suggestions for additional non-technical listings are most welcome. Vera Rubin Annie Cannon & Henrietta Leavitt Maria Mitchell Cecilia Payne ______________________________________________________________________________ Table of Contents: 1. Written Resources on the History of Women in Astronomy 2. Written Resources on Issues Women Face 3. Web Resources on the History of Women in Astronomy 4. Web Resources on Issues Women Face 5. Material on Some Specific Women Astronomers of the Past: Annie Cannon Margaret Huggins Nancy Roman Agnes Clerke Henrietta Leavitt Vera Rubin Williamina Fleming Antonia Maury Charlotte Moore Sitterly Caroline Herschel Maria Mitchell Mary Somerville Dorrit Hoffleit Cecilia Payne-Gaposchkin Beatrice Tinsley Helen Sawyer Hogg Dorothea Klumpke Roberts 6. -
2010 Annual Report Issued 10 January 2011
The SETI League, Inc. 2010 Annual Report Issued 10 January 2011 Offices: 433 Liberty Street Contents: PO Box 555 Little Ferry NJ 07643 USA Vision and Mission Statements 2 A message from our Executive Director 3 Phone: +1 (201) 641-1770 Case for Support 4 Program Service Accomplishments – Science 5 Facsimile: +1 (201) 641-1771 Program Service Accomplishments – Technology 6 Program Service Accomplishments – Public Education 7 Email: [email protected] Program Service Accomplishments – Media and Outreach 8 Trustees and Officers 9 Web: www.setileague.org Financial Highlights 10 Annual Budget – 2011 11 President / 2010 Donors 12 Enrolled Agent: Richard Factor Major Donations, Since Inception 13 Additional Information 14 Executive Director Emeritus: H. Paul Shuch, PhD SETI scientists seek to determine, primarily through microwave and optical measurements, whether humankind is alone in the Secretary/Treasurer: A. Heather Wood universe. Since Congress terminated NASA's SETI funding in 1993, The SETI League and other scientific groups have been at- Board of Trustees: tempting to privatize the research. Experimenters interested in Richard Factor participating in the search for intelligent alien life, or citizens Martin Schreiber, CPA H. Paul Shuch, PhD wishing to help support it, should visit us on the Web at A. Heather Wood <http://www.setileague.org/>, email to [email protected], send a fax to +1 (201) 641-1771, or contact The SETI League, Inc. Advisory Board: Anthony Agnello membership hotline at +1 (800) TAU-SETI. Be sure to provide us Greg Bear with a postal address, to which we will mail further information. Paul Davies, PhD Robert S. Dixon, PhD The SETI League, Inc.