Constraining Dark Matter Models with a Light Mediator at the PandaX-II Experiment.
/ Authors
X. Ren, Li Zhao, A. Abdukerim, Xun Chen, Yunhua Chen, X. Cui, D. Fang, C. Fu, K. Giboni, F. Giuliani
and 38 more authors
L. Gu, Xuyuan Guo, K. Han, Changda He, Di Huang, Shengming He, X. Huang, Zhou Huang, X. Ji, Y. Ju, Yao Li, Heng Lin, Huaxuan Liu, Jianglai Liu, Yugang Ma, Y. Mao, K. Ni, J. Ning, A. Tan, Hong-Wei Wang, Meng Wang, Qiuhong Wang, Siguang Wang, Xiuli Wang, Shiyong Wu, Jingkai Xia, M. Xiao, P. Xie, B. Yan, Jijun Yang, Yong Yang, Hai-Bo Yu, J. Yue, Zhang Tao, Jifang Zhou, N. Zhou, Q. Zheng, Xiaopeng Zhou
/ Abstract
We search for nuclear recoil signals of dark matter models with a light mediator in PandaX-II, a direct detection experiment in the China Jinping underground laboratory. Using data collected in 2016 and 2017 runs, corresponding to a total exposure of 54 ton day, we set upper limits on the zero-momentum dark matter-nucleon cross section. These limits have a strong dependence on the mediator mass when it is comparable to or below the typical momentum transfer. We apply our results to constrain self-interacting dark matter models with a light mediator mixing with standard model particles, and set strong limits on the model parameter space for the dark matter mass ranging from 5 GeV to 10 TeV.
Journal: Physical review letters