장소 | #1323(E6-2, 1st fl.) |
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일시 | Sep. 22, 2016(Thu), 3:30 PM |
연사 | Dr. Haiyang Yan (Institute of Nuclear Physics and Chemistry) |
Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
Dr. Haiyang Yan (Institute of Nuclear Physics and Chemistry)
Sep. 22, 2016(Thu), 3:30 PM, #1323(E6-2, 1st fl.)
Polarized spins are good probes to detect spin dependent new interactions beyond the standard model. In recent years, various models of new physics beyond the standard model have been studies in which new massive particles such as axion, familon,and majoron, etc. were theoretically introduced. Many of these exotic new interactions are spin dependent. Spin polarized neutron beam, atom beam or noble gases are good probes to detect these new interactions. We used spin rotation of polarized neutrons in liquid Helium to search for spin-velocity dependent new interactions. The new upper bound we obtained is more than 7 orders of magnitude more stringent than the existing laboratory constraints for interaction ranges below 1 m. We Searched for New Spin and Velocity-Dependent Interactions by spin relaxation of polarized 3He Gas. Using the best available measured T2 of polarized 3He gas atoms as the polarized source and the Earth as an unpolarized source, we obtain constraints on two new interactions. We present a new experimental upper bound on possible vector-axial-vector (VVA) type interactions for ranges between 1 and 108m.
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번호 | 일시 | 장소 | 연사 | 제목 |
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공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
44 | 2015/11/24, 4PM | E6-2, #1323 | Dr. Kab-Jin Kim (Institute for Chemical Research, Kyoto University, Japan) | Topology-based understanding of spin dynamics in inhomogeneously magnetized systems |
43 | 2015/11/23, 1:30PM | E6-2, #1323 | Dr. Michael Park (Stanford University) | What's Beyond the Standard Model? Lessons from Run I and what might come in Run II |
42 | 2015/11/19, 4PM | E6-2, #1323 | Dr. Daesu Lee (University of Wisconsin-Madison) | Emergent Collective Phenomena and Functions at Reduced Dimensions |
41 | 2015/11/10, 4PM | E6-2, #1323 | Dr. Woosuk Bang (Physics division, Los Alamos National Laboratory) | Rapid heating of matter using high power lasers |
40 | 2015/11/06, 4:30 PM | E6-2, #5318 | Dr. Youngkuk Kim (University of Pennsylvania) | Topological Dirac line nodes in centrosymmetric semimetals |
39 | 2015/10/23-12/4 10:30 AM | E6, #1501 | Prof. YongKeun Park & Prof. Tae-Young Yoon | How to write a good scientific paper[Open lecture series] |
38 | 2015/10/23, 3PM | E6-2, #5318 | Dr. Helmut Soltner (Forschungszentrum Juelich) | Development of a Rogowski Coil as a new beam position monitor |
37 | 2015/10/16, 4PM | E6-2. 2nd fl. #2501 | Prof. Yung-Fu Chen(Solid-state Laser Physics Laboratory,National Central University) | Fluctuations of entropy production in partially masked electric circuits |
36 | 2015/10/16, 3PM | E6-2, 5th fl. #5318 | Dr. Pierre Pugnat , (CNRS-LNCMI) | High Magnetic Fields to Probe the sub-eV range of Particle/Astroparticle Physics - From the OSQAR experiments at CERN up to new perspectives at LNCMI-Grenoble |
35 | 2015/10/15, 10AM | E6-2, 5th fl. #5318 | Dr. Mark D. Bird (Florida State University) | Development of Large-Bore, High Field Magnets at the NHMFL |
34 | 2015/10/14, 6PM | KAIST Munji Campus Supex Hall | 이창환 교수 (부산대학교 물리학과) |
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33 | 2015/09/15-12/08 | E6, 1501 | 박제근 교수(서울대 물리학과) 외12명 |
Physics Colloquium : 2014 Fall
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32 | 2015/09/14, 2PM | E6-2. 2nd fl. #2501 | Dr. Hae Ja Lee ( Stanford University, SLAC ) | Ultrafast X-ray Studies on Dynamics Matter in Extreme Conditions |
31 | 2015/09/07-12/01 | E6, 1501 | 문은국 교수(KAIST) 외 |
Physics Colloquium : 2015 Fall
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30 | 2015/09/07, 3PM | E6-2. 1st fl. #1318 | Dr. Jasbinder Sanghera (U.S. Naval Research Laboratory (NRL)) | Advanced Optical Materials and Devices at NRL |
29 | 2015/08/04, 11PM | B501, Room Red, KI bldg. 5nd fl. | Dr. Eric Jin Ser Lee(Univ. of Manitoba, Canada) | Propagation of ultrasound through two- and three-dimensional strongly scattering media |
28 | 2015/08/03,10:30AM | E6-2, #1323 (Seminar Room) | Dr. Jonghee Yoo (Fermi National Accelerator Laboratory, USA ) | Axion Search |
27 | 2015/07/23,1:30PM | E4, B401 | Prof. Gilles Lérondel (Univ. of Technology of Troyes) |
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26 | 2015/07/16-07/17 | E6-2, 1501 | Sang-Wook Cheong (Rutgers Univ.) | KAIST Physics Distinguished Lecture |
25 | 2015/07/16, 4PM | E6-2, 1318 | Dr. Kyunghan Hong(MIT) | Next-generation ultrafast laser technology for nonlinear optics and strong-field physics |