Constraining Dark Matter Models with a Light Mediator from PandaX-II Experiment

• Published in: arXiv.org
• Main Authors: Ren, Xiangxiang, Zhao, Li, Abdukerim, Abdusalam, Chen, Xun, Chen, Yunhua, Cui, Xiangyi, Fang, Deqing, Fu, Changbo, Giboni, Karl, Giuliani, Franco, Gu, Linhui, Guo, Xuyuan, Han, Ke, He, Changda, Huang, Di, He, Shengming, Huang, Xingtao, Huang, Zhou, Ji, Xiangdong, Ju, Yonglin, Yao, Li, Lin, Heng, Liu, Huaxuan, Liu, Jianglai, Ma, Yugang, Mao, Yajun, Ni, Kaixiang, Ning, Jinhua, Tan, Andi, Wang, Hongwei, Wang, Meng, Wang, Qiuhong, Wang, Siguang, Wang, Xiuli, Wu, Shiyong, Xiao, Mengjiao, Xie, Pengwei, Yan, Binbin, Yang, Jijun, Yang, Yong, Hai-Bo Yu, Yue, Jianfeng, Zhang, Tao, Zhou, Jifang, Zhou, Ning, Zheng, Qibin, Zhou, Xiaopeng
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 14.06.2018
• Subjects: Dark matter; Dependence; Momentum transfer; Physics - High Energy Physics - Experiment; Physics - High Energy Physics - Phenomenology; Recoil; Standard model (particle physics)
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1802.06912

We search for nuclear recoil signals of dark matter models with a light mediator in PandaX-II, a direct detection experiment in 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 \(5~{\rm GeV}\) to \(10~{\rm TeV}\).