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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106 | Nov. 11th(Fri), 1:30 p.m. | #1323(E6-2. 1st fl.) | Dr. Keun Su Kim, POSTECH | Bandgap Engineering of Black Phosphorus |
105 | Nov. 04 (Fri), 3:00 PM | E6-2. #1323(1st fl.) | Dr. Dohun Kim, Department of Physics and Astronomy, SNU | Quantum information experiments using few electron spins in semiconductors |
104 | Nov. 04 (Fri), 1:30 PM | E6-2. #1323(1st fl.) | Dr. Jonghyun Song, Department of Physics, Chungnam National University | Exotic phenomena at oxide LaAlO3/SrTiO3 hetero-interface and their applications |
103 | Nov. 1st (Tue), 10:30AM | #1323(E6-2 1st fl.) | Dr. Gadi Eisenstein, Technion | Time scale dependent dynamics in InAs/InP quantum dot gain media |
102 | Oct. 27th(Thu) 4PM | #1323(E6-2) | Dr. 이 강 희, KAIST, Mechnical Engineering | Terahertz Metal Optics |
101 | Nov. 1 (Tue.) 2:30 pm | Seminar Room #1323(E6-2) | Prof. Youngjoon Kwon, Yonsei Univ. | Search for dark sector particles in the B-factory experiments |
100 | Oct. 17th (Mon) 11:00 AM | #1323,(E6-2, 1st fl.) | Nguyen Quang Liem, Institute of Materials Science, VAST, Viettnam | IMS and examples of the studies on optoelectronic materials |
99 | Oct. 18 (Tue.), 3PM | E6-2. 1st fl. #1323 | Dr. JunHo Suh, Korea Research Institute of Standards and Science | “Hybrid quantum systems with mechanical oscillators” |
98 | Oct. 18 (Tue.), 1:30 PM | 1st fl. #1323(E6-2) | Dr. Chan-Ho Yang, Department of Physics, KAIST | "Visualization of oxygen vacancy in motion and the interplay with electronic conduction" |
97 | Oct. 07 (Fri), 4:00 PM | E6-2. #1323(1st fl.) | Dr. Choong Hyun Kim,IBS-CCES, Seoul National University | “Tilt engineering of 4d and 5d transition metal oxides?” |
96 | Oct. 07 (Fri), 1:30 PM | E6-2. #1323(1st fl.) | Dr. Suk Bum Chung, IBS-CCES , Seoul National University | “Symmetry and topology in transition metal dichalcogenide?” |
95 | 2016/09/29-12/13 | E6-2, #1323 | Sangyoon Han 외 |
2016 Fall, Physics Seminar Serises
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94 | Sep. 29th(Thu), 4PM | E6-2 #1323 (1st floor) | Dr. Sangyoon Han, Department of Physics, KAIST | Large-scale Silicon Photonic MEMS Switches |
93 | Sep. 29 (Thu), 4:00 PM | E6-2. #2501(2nd fl.) | Dr. Minu Kim, Institute for Basic Science, Seoul National University | Exploring the phase diagram of BaBiO3: epic voyage of just another bad trip? |
92 | Sep. 22, 2016(Thu), 3:30 PM | #1323(E6-2, 1st fl.) | Dr. Haiyang Yan (Institute of Nuclear Physics and Chemistry) | Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model |
91 | 4pm, Sep. 21 (Wed. | E6-2. #2502(2nd fl.) | Dr. Henrik Johannesson , University of Gothenburg (Sweden) and Beijing Computational Science Research Center (China) | Entanglement probe of two-impurity Kondo physics |
» | Sep. 22, 2016(Thu), 3:30 PM | #1323(E6-2, 1st fl.) | Dr. Haiyang Yan (Institute of Nuclear Physics and Chemistry) | Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model |
89 | 2016/09/05-12/12 4PM | Natual Scien Bldg.(E6)m #1501 | Yeong Kwan Kim 외 |
Physics Colloquium : 2016 Fall
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88 | Sep. 02(Fri) 4:00 PM | E6-2(1st fl) #1323 | Dr. Yong-Joo Doh, Department of Physics and Photon Science, GIST | Quantum Electrical Transport in Topological Insulator Nanowires |