| Autor: |
Zhou Huang, Pengwei Xie, Shiyong Wu, Xiangdong Ji, Andi Tan, Jijun Yang, Changbo Fu, Shaoli Li, Anqing Wang, Xun Chen, Xingtao Huang, Zhou Wang, Jinhua Ning, Xuyuan Guo, Xiangxiang Ren, Dan Zhang, Changda He, Zhifan Guo, Jianfeng Yue, Wei Chen, Yajun Mao, Peng Ji, Wick Haxton, Hongwei Wang, Meng Wang, Jifang Zhou, Karl Giboni, Huaxuan Liu, Franco Giuliani, Abdusalam Abdukerim, Cheng Wang, Yonglin Ju, Linhui Gu, Siguang Wang, Ning Zhou, Di Huang, Kaixiang Ni, Fang Shi, Mengmeng Wu, Hongguang Zhang, Shengming He, Yunhua Chen, Li Zhao, Jianglai Liu, Xiuli Wang, Qibin Zheng, Tao Zhang, Jumin Yuan, Qiuhong Wang, Xuming Wang, Deqing Fang, Binbin Yan, Chunxu Yu, Xiangyi Cui, Yong Yang, Yu-Gang Ma, Xiaopeng Zhou, Jingkai Xia, Mengjiao Xiao, Heng Lin, Ke Han |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Physics Letters
Physics Letters B, Vol 792, Iss, Pp 193-198 (2019) |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2019.02.043 |
| Popis: |
We present PandaX-II constraints on candidate WIMP-nucleon effective interactions involving the nucleon or WIMP spin, including, in addition to standard axial spin-dependent (SD) scattering, various couplings among vector and axial currents, magnetic and electric dipole moments, and tensor interactions. The data set corresponding to a total exposure of 54-ton-days is reanalyzed to determine constraints as a function of the WIMP mass and isospin coupling. We obtain WIMP-nucleon cross section bounds of $\rm 1.6 \times 10^{-41} cm^2$ and $\rm 9.0 \times 10^{-42} cm^2$ ($90\%$ c.l.) for neutron-only SD and tensor coupling, respectively, for a mass $M_\mathrm{WIMP} \sim {\rm 40~GeV}/c^2$. The SD limits are the best currently available for $M_\mathrm{WIMP} > {\rm 40~GeV}/c^2$. We show that PandaX-II has reached a sensitivity sufficient to probe a variety of other candidate spin-dependent interactions at the weak scale.
6 pages, 4 figures |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect 