장소 | #1323(E6-2, 1st fl.) |
---|---|
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.
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
80 | 3pm, 19th May | online | Jonghee Yoon, PhD (Assistant professor, Department of Physics, Ajou University) | (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis |
79 | 3pm, 19th May | online | Jonghee Yoon, PhD (Assistant professor, Department of Physics, Ajou University) | (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis |
78 | 4pm, 31th March | online | 최현용 (서울대학교 물리천문학부) | (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials |
77 | Mar 2 (Tue.), 16:00 | Online | Dr. Dmitry Svintsov |
Sensitive terahertz detection with graphene-based transistors
![]() |
76 | Feb.17(Wed)~19(Fri), 09:00~11:00AM | Online | Prof. Subir Sachdev (Harvard University) |
석학 대중 강연 및 강의 시리즈
![]() |
75 | Dec.23(Wed), 10:00~16:00 | Online | Prof. YongKeun Park (KAIST) and etc. |
Online workshop for Quantitative Phase Imaging
![]() |
74 | Dec. 11 (Fri.), 04:00 PM | online | Hyobin Yoo(Sogang Univ.) | Atomic and electronic reconstruction at van der Waals interface in twisted 2D materials |
73 | Dec. 11 (Fri.), 02:30 PM | online | Myung Hwa Jung(Sogang Univ.) | Antisymmetric interlayer exchange coupling in magnetic multilayers |
72 | Nov. 20 (Fri.), 02:30 PM | Online | Dr. Doohee Cho | Lumpy Cooper pairs in an iron-based superconductor |
71 | Nov. 20 (Fri.), 04:00 PM | Online | Dr. Dohun Kim | Coherent control of field gradient induced quantum dot spin qubits |
70 | Jun. 10 (Fri.), 11:00 AM | Online seminar | Dr. Yoon Jang Chung(Laboratory for Physical Sciences, University of Maryland) |
Record-quality two-dimensional electron systems
![]() |
69 | June 3rd, Fri. 9:30 AM | Online seminar | Prof. Juejun Hu ( Massachusetts Institute of Technology) |
(Quantum-&Nano-Photonics Webinar) Seeing glass in a new light: reimagine chalcogenide photonics
![]() |
68 | April 15(Fri.) 11:00 | Online seminar | Prof.Jaekwang Lee (Department of Physics, Pusan National University) |
(응집물리 세미나) First-principles studies of polar oxides and their applications
![]() |
67 | March 18(Fri.) 11:00 | Online seminar | Dr. Dirk Wulferding (IBS-Center for Correlated Electron Systems, Seoul National University, Seoul) |
(응집물리 세미나) Illuminating exotic states of matter: Raman spectroscopy as an experimental tool to characterize quantum spin liquids
![]() |
66 | May 27,(Fri), 11:00 AM | Online seminar | Prof. Gray Rybka(University of Washington) |
Current Status and Future Plans of ADMX
![]() |
65 | 7월 29일(목) 오후 2시 ~ 오후 4시 | Online seminar | Dr. Kunio Kaneta(KIAS) |
Gravitationally Induced Dark Sector and Inflationary Dynamics
![]() |
64 | Jun. 11 (Fri.), 04:00 PM | Online seminar | Dr. Keun Su Kim(Yonsei University) |
Pseudogap in surface-doped black phosphorus
![]() |
63 | Jun. 11 (Fri.), 02:30 PM | Online seminar | Dr. Jin Woong Cha(KRISS) |
Engineering sound waves and vibrations in multi-mode nanomechanical systems
![]() |
62 | May. 14 (Fri.), 04:00 PM | Online seminar | Dr. Je-Hyung Kim(UNIST) |
Spatial and temporal separation of environmental dephasing sources from solid-state quantum emitters
![]() |
61 | May. 14 (Fri.), 02:30 PM | Online seminar | Dr. Suyong Jung(KRISS) |
Electrically tunable spin valve effect in vertical van-der-Waals magnetic tunnel junctions
![]() |