DPF NEWSLETTER - January 15, 1994
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TAE 2018 Javier Redondo Universidad De Zaragoza Max Planck Institute Für Physik Overview
Axions TAE 2018 Javier Redondo Universidad de Zaragoza Max Planck Institute für Physik Overview - Strong CP problem - Axions - Axion Dark matter - Searching for axions in the sky in the lab Parity and Time reversal in particle physics (electroweak interactions) P-violation (Wu 56) T-violation (CPLEAR 90’s) R(K¯ 0 K0) R(K0 K¯ 0) ! − ! R(K¯ 0 K0)+R(K0 K¯ 0) 60% ! ! 40% ... but not in the strong interactions many theories based on SU(3)c (QCD) 1 ↵ = G Gµ⌫ + iq¯γµD q qmq¯ + s ✓G Gµ⌫ LQCD −4 µ⌫a a µ − 8⇡ µ⌫a a q X e P,T conserving P,T violating we tend to forget this ↵s µ⌫ ✓Gµ⌫aGa induces P and T (CP) violation ✓ 8⇡ / e ✓ ( ⇡, ⇡) infinitely versions of QCD... all are P,T violating 2 − Neutron EDM 15 Most important P, T violating observable dn ✓ (10− )e cm ⇠ ⇥ O ✓ (1) ⇠ O EDM violates P,T The theta angle of the strong interactions - The value of ✓ controls P,T violation in QCD ✓ ⇡ ⇡ − 0 n n n n¯ n¯ n¯ 10 Measured today ✓ < 10− | | (strong CP problem) Roberto Peccei and Helen Quinn 77 QCD vacuum energy minimised at theta = 0 - ... if ✓ ( t, x ) is dynamical field, relaxes to its minimum Energy generated by QCD! ✓ ⇡ ⇡ − 0 n n¯ 10 Measured today ✓ < 10− | | (strong CP problem) ain’t you forgetting something? P. Higgs and a new particle is born ... - if ✓ ( t, x ) is dynamical field Energy generated by QCD! ✓ ⇡ ⇡ − 0 Field Excitations around the vacuum are particles clears the strong CP problem it’s a higgslet! like my favorite soap S. -
Dark-Matter QCD-Axion Searches COLLOQUIUM
PAPER Dark-matter QCD-axion searches COLLOQUIUM Leslie J Rosenberg1 Department of Physics, University of Washington, Seattle, WA 98195 Edited by Neta A. Bahcall, Princeton University, Princeton, NJ, and approved October 30, 2014 (received for review July 26, 2013) In the late 20th century, cosmology became a precision science. Now, hadronic jets and the “running” of the strong coupling constant. at the beginning of the next century, the parameters describing how However, by the mid-1970s, it was realized that this theory our universe evolved from the Big Bang are generally known to predicts large violations of CP, the product of charge-reversal a few percent. One key parameter is the total mass density of the (C) and parity inversion (P), due to “instanton” (multiple de- universe. Normal matter constitutes only a small fraction of the total generate QCD vacuua) effects. It would be uncomfortable to mass density. Observations suggest this additional mass, the dark have QCD without instanton-mediated CP violation, as de- matter, is cold (that is, moving nonrelativistically in the early generate vacuua neatly explain hadron masses. One such CP- universe) and interacts feebly if at all with normal matter and violating effect is a permanent electric dipole moment for a spin- radiation. There’s no known such elementary particle, so the strong ning nondegenerate object bound by strong interactions (e.g., presumption is the dark matter consists of particle relics of a new the neutron). kind left over from the Big Bang. One of the most important ques- In a pleasing series of measurements, the neutron is constrained tions in science is the nature of this dark matter. -
NSF 09-33, Impact of Transformative Interdisciplinary Research And
Appendix 1 List of Workshop Participants Organized by Working Groups REsEaRch woRkInG GRoup IGERT Principal Investigators Dr. John Flach Dr. John W. Sutherland Dr. John Brighton Professor / Chair of Psychology Henes Chair Professor Vice President for Research Wright State University of Mechanical Engineering and Economic Development Michigan Technological University Iowa State University Dr. Melissa Hines Professor, Director, Cornell Center Dr. Branka Valcic Dr. James A. Calvin for Materials Research (for Dr. Gary Kofinas) Interim Vice President for Research Cornell University Assistant Professor of Economics Texas A&M University University of Alaska Fairbanks Dr. Hutchison Keith Dr. Larry H. Danziger Professor of Biochemistry, Micro- Dr. Ouri Wolfson Interim Vice Chancellor for Research biology and Molecular Biology Professor of Computer Science University of Illinois Chicago University of Maine University of Illinois Chicago Dr. Sandra Degen Dr. Timothy A. Kohler Dr. Neal W. Woodbury Vice President for Research Regents Professor of Anthropology Professor of Chemistry University of Cincinnati Washington State University and Biochemistry Arizona State University Dr. Arthur Ellis Dr. Kenneth A. Oye Vice Chancellor for Research Associate Professor of Political University of California San Diego Science and Engineering Systems Administrators Massachusetts Institute of Technology Dr. Pierre Hohenberg Dr. John A. Bantle II Senior Vice Provost for Research Vice President for Research Dr. Anu Ramaswami New York University and Graduate Studies Professor of Civil Engineering Wright State University University of Colorado Denver Dr. Jorge V. José Vice President for Research Dr. Joe Benson University at Buffalo, The State Interim Vice President for Research University of New York University of Alabama Tuscaloosa IGERT Workshop Report 29 Dr. -
NMD, National Security Issues Featured at 2001 April Meeting In
April 2001 NEWS Volume 10, No. 4 A Publication of The American Physical Society http://www.aps.org/apsnews NMD, National Security Issues Featured Phase I CPU Report to be at 2001 April Meeting in Washington Discussed at Attendees of the 2001 APS April include a talk on how the news me- Meeting, which returns to Wash- dia cover science by David April Meeting ington, DC, this year, should arrive Kestenbaum, a self-described “es- The first phase of a new Na- just in time to catch the last of the caped physicist who is hiding out tional Research Council report of cherry blossom season in between at National Public Radio,” and a lec- the Committee on the Physics of scheduled sessions and special ture on entangled photons for the Universe (CPU) will be the events. The conference will run quantum information by the Uni- topic of discussion during a spe- April 28 through May 1, and will versity of Illinois’ Paul Kwiat. Other cial Sunday evening session at the feature the latest results in nuclear scheduled topics include imaging APS April Meeting in Washing- physics, astrophysics, chemical the cosmic background wave back- ton, DC. The session is intended physics, particles and fields, com- ground, searching for extra to begin the process of collect- putational physics, plasma physics, dimensions, CP violation in B me- ing input from the scientific the physics of beams, and physics sons, neutrino oscillations, and the community on some of the is- history, among other subdisci- amplification of atoms and light in The White House and (inset) some of its famous fictional sues outlined in the draft report, plines. -
Professor Helen Quinn
Professor Helen Quinn Helen Quinn was born in Australia and grew up in the Melbourne suburbs of Blackburn and Mitcham. She attended Tintern Girls Grammar School in Ringwood East. She matriculated successfully and obtained a cadetship from the Australian Department of Meteorology to fund her studies at the University of Melbourne. After beginning her undergraduate studies at the University, her family migrated to San Francisco in the early 1960s. Professor Quinn finished her undergraduate, and eventually graduate education at Stanford University. After receiving her doctorate from Stanford in 1967, she held a postdoctoral position at Deutsches Elektronen Synchrotron in Hamburg, Germany, then served as a research fellow at Harvard in 1971, joining the faculty there in 1972. She returned to Stanford in 1976 as a visitor on a Sloan Fellowship and joined the staff at the Stanford Linear Accelerator Centre (SLAC) in 1977. In her current position as a theoretical physicist at the Stanford Linear Accelerator Center (SLAC), Professor Quinn has made important contributions towards unifying the strong, weak and electromagnetic interactions into a single coherent model of particle physics. In 2000 she was awarded the Dirac Medal and Prize for pioneering contributions to the quest for a unified theory of quarks and leptons and of the strong, weak, and electromagnetic interactions. The award, shared with Professors Howard Georgi of Harvard and Jogesh Pati of the University of Maryland, recognized Professor Quinn for her work on the unification of the three interactions, and for fundamental insights about charge-parity conservation. She has also recently developed basic analysis methods used to search for the origin of particle-antiparticle asymmetry in nature. -
6 8 Myriam Sarachik Elected APS Vice President
November 2000 NEWS Volume 9, No. 10 A Publication of The American Physical Society http://www.aps.org/apsnews Myriam Sarachik Elected APS Vice President Members of the APS have chosen Sciences Research at Lucent. Only and government labs, and to pro- Myriam Sarachik, a distinguished two new general councillors were vide the next generation of professor of physics at City College elected, compared to the four educators at our universities,” she of New York’s City University of New elected in previous years, to reflect says. One of her goals as President York, to be the Society’s next vice recent changes in the APS Consti- will be to strengthen the society’s president. Sarachik is the third tution, designed to reduce the size efforts to make a career in physics woman to be elected to the presi- of the APS Council. These changes attractive. “We need to be more ef- dential line in the Society’s 101-year were published in the March 2000 fective in explaining the pleasures history, following C.S. Wu of Colum- issue of APS News. that a career in physics can bring, bia in 1975, and Mildred the satisfaction garnered from VICE PRESIDENT CHAIR-ELECT OF THE Dresselhaus of MIT (who became VICE PRESIDENT teaching, and the excitement of re- Myriam Sarachik NOMINATING COMMITTEE Director of the Department of MYRIAM SARACHIK search and discovery; we must also Susan Coppersmith Energy’s Office of Science in August) City College of New York/CUNY have salaries competitive with other in 1984. Sarachik’s term begins Born in Antwerp, Belgium, professional options,” she says. -
Meeting of the Executive Committee of the DPF
Meeting of the Executive Committee of the DPF December 19, 1997 Present: Bagger, Beier, Burchat, Devlin, Frisch, Georgi, Gordon, Grannis, Kinoshita, Naples, Newman-Holmes, Rutherfoord, Schellman Guests: B. Barnett, T. McIlrath, R. Peccei, J. Sandweiss Agenda: 1. Report of the Chair 2. Report of the Secretary-Treasurer 3. Report of the APS Treasurer 4. Congressional Reception 5. Report on OSTP and OMB Visit 6. APS Council Report 7. Physical Review Letters 8. DPF 99 9. DPF 2000/2001 10. April Meeting 11. Education and Outreach 12. Tanaka Prize 13. APS Centennial 14. Prize for Technical Contributions 15. Phenomenology in the U.S. 16. FNAL Director Search 17. DPF Committees For more on these items, see the DPF home page, http://www.aps.org/units/dpf/. Report of the Chair Paul Grannis introduced the new members of the Executive Committee and thanked the people who are retiring. He announced that Bruce Barnett of Johns Hopkins will begin a three-year term as organizer of the DPF Congressional Reception, and that Bob Cahn of LBNL will take over as Public Information Coordinator. Grannis also reminded the Executive Committee that Gene Beier will replace Frank Sciulli as the DPF representative on ICFA. Report of the Secretary-Treasurer As of November 1, 1997, the DPF account balance stood at $86,274. The prize account balances stood as follows: Panofsky, $64,103; Sakurai, $174,053; Wilson, $107,697. The Panofsky Prize Fund remains significantly underendowed. Howard Georgi will take over the fund raising effort. Howard Gordon and Pat Burchat have volunteered to help. Report of the APS Treasurer Tom McIlrath presented a positive report on APS finances. -
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. -
Tracking Optimal Axion-Sensitivie Resonant Modes in ADMX
Tracking Optimal Axion-Sensitivie Resonant Modes in ADMX Nicole Man∗ University of California, Santa Cruz Mentors: Gray Rybka and Leslie Rosenberg University of Washington (ADMX Collaboration) (Dated: August 30, 2019) In ADMX operations, the TM010 mode is best coupled to our antennas as it provides the largest form factor. As the form factor is proportional to the power signal, tracking the TM010 mode ensures the use of the optimal axion-sensitive resonant modes. In this report, I will discuss the method to tracking the optimal axion-sensitive resonant modes in ADMX to ensure maxmized power signals. I. INTRODUCTION II. BACKGROUND For the past few decades, the general consensus for A. Motivation for Axion finding out what makes up approximately 27% of the mysterious side of the universe was determined as a non- In 1977, theorists Roberto Peccei and Helen Quinn pro- trivial task. posed a solution to the well known strong CP problem. The most popular dark matter candidate was the the- In the standard model, CP (charge-parity) symmetry is oretical weakly interacting massive particle (WIMP). a formal symmtery of any theory in which laws of physics WIMPs were considered a favorable candidate for a long do not distinguish between matter and antimatter. How- time, both having a sensible mass for particles that in- ever, in the theory of quantum chromodynamics, (QCD), teract via the weak force that coincide with the amount the mathematical form of the theory, or the QCD la- of dark matter we see in the universe today, as well as grangian, suggests that there should be in fact a violation filling in the theorized particle in the speculative theory of this symmetry in strong interactions. -
Glossary of Terms Absorption Line a Dark Line at a Particular Wavelength Superimposed Upon a Bright, Continuous Spectrum
Glossary of terms absorption line A dark line at a particular wavelength superimposed upon a bright, continuous spectrum. Such a spectral line can be formed when electromag- netic radiation, while travelling on its way to an observer, meets a substance; if that substance can absorb energy at that particular wavelength then the observer sees an absorption line. Compare with emission line. accretion disk A disk of gas or dust orbiting a massive object such as a star, a stellar-mass black hole or an active galactic nucleus. An accretion disk plays an important role in the formation of a planetary system around a young star. An accretion disk around a supermassive black hole is thought to be the key mecha- nism powering an active galactic nucleus. active galactic nucleus (agn) A compact region at the center of a galaxy that emits vast amounts of electromagnetic radiation and fast-moving jets of particles; an agn can outshine the rest of the galaxy despite being hardly larger in volume than the Solar System. Various classes of agn exist, including quasars and Seyfert galaxies, but in each case the energy is believed to be generated as matter accretes onto a supermassive black hole. adaptive optics A technique used by large ground-based optical telescopes to remove the blurring affects caused by Earth’s atmosphere. Light from a guide star is used as a calibration source; a complicated system of software and hardware then deforms a small mirror to correct for atmospheric distortions. The mirror shape changes more quickly than the atmosphere itself fluctuates. -
December 2007 Volume 16, No
December 2007 Volume 16, No. 11 www.aps.org/publications/apsnews Physicist is New York Times APS NEWS War Correspondent A PublicAtion of the AmericAn PhysicAl society • www.APs.org/PublicAtions/APsnews see page 5 Fellows by the Bay The Big Easy Hosts 2008 March Meeting The 2008 APS March Meet- ics sing-along, and a High Conditional Quantum Evolu- ing will be held March 10-14 School Teachers’ Day on Tues- tion; and Ethics Education. in New Orleans, Louisiana. It day, March 11, which will be The 5th APS Workshop on is the largest annual gathering held at LIGO-Livingston. Opportunities in Biological of professional physicists in In addition to the regular Physics, organized by the Di- the country. The scientific vision of Biological Phys- program will feature more ics, will be held on Sunday, than 90 invited sessions March 9. and 550 contributed ses- On Saturday, March 8 sions, at which approxi- and Sunday, March 9, the mately 7000 papers will Division of Polymer Phys- be presented, covering ics will host a special short the latest research in areas course: High-throughput represented by the APS Approaches to Polymer divisions of condensed Physics and Materials Sci- matter physics, materials ence. Photo by Darlene logan physics, polymer phys- New Orleans is an excit- APs fellows (l to r) Janice button-shafer (berkeley), george trilling (berkeley), ics, chemical physics, ing city, and has achieved and Elliott Bloom (SLAC) enjoy the Bay Area Fellows reception that APS hosted biological physics, fluid significant recovery from at the berkeley faculty club on october 16. -
Fermilab Theory Group
Fermilab Theory Group Christopher T. Hill DOE Annual Program Review Fermilab, May 17, 2006 Scale of Effort(s) Program Review FY05 FY06 FY07 FY08 Particle Theory (SWF+M&S+G&V) $3,598 $3,531 $3,731 $3,899 Lattice $1,451 $2,782 $2,733 $3,035 The support for the Lattice gauge is increasing; some of the funds come from SciDAC, some from the core budget. Scientists (12) Associate Scientists (1) Research Associates (9) Bill Bardeen Thomas Becher (9/04) Mu-Chun Chen Marcela Carena Richard Hill Estia Eichten Jay Hubicz Keith Ellis Jim Laiho Walter Giele Olga Mena Christopher Hill Senior Guest Scientist(1) Enrico Lunghi Andreas Kronfeld Jose Santiago Boris Kayser Joe Lykken Peter Skands Paul Mackenzie Ruth van de Water Bogdan Dobrescu* Emeritus Scientist (1) Regular Users Stephen Parke Leon M. Lederman C. Albright (NIU) Chris Quigg S. Mrenna (Fermilab, Computing) Y. Keung (UIC) *Promoted, 10/01/05 S.P. Martin (NIU) Ulrich Baur (Buffalo) Departures: Associate Scientist Search: Ayres Freitas Zurich ETH Babis Anastasiou (offered and declined) Giulia Zanderighi CERN Uli Haisch Zurich ETH History of the Post-Docs, Associate Masataka Okamoto KEK Scientists and Frontier Fellows is Ulrich Nierste Karlsruhe (Professor) posted on the web: http://theory.fnal.gov/people/ellis/alumni.html New Postdoc Hires arrived Fall 2005: http://theory.fnal.gov/people/ellis/Assoc.html Mu-Chun Chen (from BNL),(*) http://theory.fnal.gov/people/ellis/frontier.html Richard Hill (from SLAC), Jay Hubicz (from Cornell) Enrico Lunghi (from ETH) Ruth van de Water (from Seattle) (*) just received Jr. Faculty offer from Irvine New Postdoc Hires to arrive Fall 2006: K.