학술논문
A search for two-component Majorana dark matter in a simplified model using the full exposure data of PandaX-II experiment
Document Type
article
Author
Ying Yuan; Abdusalam Abdukerim; Zihao Bo; Wei Chen; Xun Chen; Yunhua Chen; Chen Cheng; Xiangyi Cui; Yingjie Fan; Deqing Fang; Changbo Fu; Mengting Fu; Lisheng Geng; Karl Giboni; Linhui Gu; Xuyuan Guo; Ke Han; Changda He; Jinrong He; Di Huang; Yanlin Huang; Zhou Huang; Ruquan Hou; Xiangdong Ji; Yonglin Ju; Chenxiang Li; Mingchuan Li; Shu Li; Shuaijie Li; Qing Lin; Jianglai Liu; Xiaoying Lu; Lingyin Luo; Wenbo Ma; Yugang Ma; Yajun Mao; Yue Meng; Nasir Shaheed; Xuyang Ning; Ningchun Qi; Zhicheng Qian; Xiangxiang Ren; Changsong Shang; Guofang Shen; Lin Si; Wenliang Sun; Andi Tan; Yi Tao; Anqing Wang; Meng Wang; Qiuhong Wang; Shaobo Wang; Siguang Wang; Wei Wang; Xiuli Wang; Zhou Wang; Mengmeng Wu; Weihao Wu; Jingkai Xia; Mengjiao Xiao; Xiang Xiao; Pengwei Xie; Binbin Yan; Xiyu Yan; Jijun Yang; Yong Yang; Chunxu Yu; Jumin Yuan; Dan Zhang; Minzhen Zhang; Peng Zhang; Tao Zhang; Li Zhao; Qibin Zheng; Jifang Zhou; Ning Zhou; Xiaopeng Zhou; Yong Zhou
Source
Physics Letters B, Vol 832, Iss , Pp 137254- (2022)
Subject
Language
English
ISSN
0370-2693
Abstract
In the two-component Majorana dark matter model, one dark matter particle can scatter off the target nuclei, and turn into a slightly heavier component. In the framework of a simplified model with a vector boson mediator, both the tree-level and loop-level processes contribute to the signal in direct detection experiment. In this paper, we report the search results for such dark matter from PandaX-II experiment, using total data of the full 100.7 tonne⋅day exposure. No significant excess is observed, so strong constraints on the combined parameter space of mediator mass and dark matter mass are derived. With the complementary search results from collider experiments, a large range of parameter space can be excluded.