Constraining self-interacting dark matter with the full dataset of PandaX-II
Abstract
Self-interacting Dark Matter (SIDM) is a leading candidate proposed to solve discrepancies between predictions of the prevailing cold dark matter theory and observations of galaxies. Many SIDM models predict the existence of a light force carrier that mediate strong dark matter self-interactions. If the mediator couples to the standard model particles, it could produce characteristic signals in dark matter direct detection experiments. We report searches for SIDM models with a light mediator using the full dataset of the PandaX-II experiment, based on a total exposure of 132 tonne-days. No significant excess over background is found, and our likelihood analysis leads to a strong upper limit on the dark matter-nucleon coupling strength. We further combine the PandaX-II constraints and those from observations of the light element abundances in the early universe, and show that direct detection and cosmological probes can provide complementary constraints on dark matter models with a light mediator.
Keywords
Cite
@article{arxiv.2104.14724,
title = {Constraining self-interacting dark matter with the full dataset of PandaX-II},
author = {Jijun Yang and Abdusalam Abdukerim and Wei Chen and Xun Chen and Yunhua Chen and Chen Cheng and Xiangyi Cui and Yingjie Fan and Deqing Fang and Changbo Fu and Mengting Fu and Lisheng Geng and Karl Giboni and Linhui Gu and Xuyuan Guo and Ke Han and Changda He and Shengming He and Di Huang and Yan Huang and Ran Huo and Yanlin Huang and Zhou Huang and Xiangdong Ji and Yonglin Ju and Shuaijie Li and Qing Lin and Huaxuan Liu and Jianglai Liu and Xiaoying Lu and Wenbo Ma and Yugang Ma and Yajun Mao and Yue Meng and Nasir Shaheed and Kaixiang Ni and Jinhua Ning and Xuyang Ning and Xiangxiang Ren and Changsong Shang and Guofang Shen and Lin Si and Andi Tan and Anqing Wang and Hongwei Wang and Meng Wang and QiuHong Wang and Siguang Wang and Wei Wang and Xiuli Wang and Zhou Wang and Mengmeng Wu and Shiyong Wu and Weihao Wu and Jingkai Xia and Mengjiao Xiao and Xiang Xiao and Pengwei Xie and Binbin Yan and Yong Yang and Chunxu Yu and Hai-Bo Yu and Jumin Yuan and Ying Yuan and Xinning Zeng and Dan Zhang and Tao Zhang and Li Zhao and Qibin Zheng and Jifang Zhou and Ning Zhou and Xiaopeng Zhou},
journal= {arXiv preprint arXiv:2104.14724},
year = {2021}
}
Comments
5 pages, 5 figures