학술논문
PandaX-II constraints on spin-dependent WIMP-nucleon effective interactions
Document Type
article
Author
Jingkai Xia; Abdusalam Abdukerim; Wei Chen; Xun Chen; Yunhua Chen; Xiangyi Cui; Deqing Fang; Changbo Fu; Karl Giboni; Franco Giuliani; Linhui Gu; Xuyuan Guo; Zhifan Guo; Ke Han; Changda He; Shengming He; Di Huang; Xingtao Huang; Zhou Huang; Peng Ji; Xiangdong Ji; Yonglin Ju; Shaoli Li; Heng Lin; Huaxuan Liu; Jianglai Liu; Yugang Ma; Yajun Mao; Kaixiang Ni; Jinhua Ning; Xiangxiang Ren; Fang Shi; Andi Tan; Anqing Wang; Cheng Wang; Hongwei Wang; Meng Wang; Qiuhong Wang; Siguang Wang; Xiuli Wang; Xuming Wang; Zhou Wang; Mengmeng Wu; Shiyong Wu; Mengjiao Xiao; Pengwei Xie; Binbin Yan; Jijun Yang; Yong Yang; Chunxu Yu; Jumin Yuan; Jianfeng Yue; Dan Zhang; Hongguang Zhang; Tao Zhang; Li Zhao; Qibin Zheng; Jifang Zhou; Ning Zhou; Xiaopeng Zhou; Wick C. Haxton
Source
Physics Letters B, Vol 792, Iss , Pp 193-198 (2019)
Subject
Language
English
ISSN
0370-2693
Abstract
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 1.6×10−41 cm2 and 9.0×10−42 cm2 (90% c.l.) for neutron-only SD and tensor coupling, respectively, for a mass MWIMP∼40GeV/c2. The SD limits are the best currently available for MWIMP>40GeV/c2. We show that PandaX-II has reached a sensitivity sufficient to probe a variety of other candidate spin-dependent interactions at the weak scale. Keywords: PandaX-II experiment, WIMP dark matter, Spin-dependent effective interactions