A Search for Light Fermionic Dark Matter Absorption on Electrons in PandaX-4T
High Energy Physics - Experiment
2023-07-06 v3 High Energy Astrophysical Phenomena
Abstract
We report a search on a sub-MeV fermionic dark matter absorbed by electrons with an outgoing active neutrino using the 0.63 tonne-year exposure collected by PandaX-4T liquid xenon experiment. No significant signals are observed over the expected background. The data are interpreted into limits to the effective couplings between such dark matter and electrons. For axial-vector or vector interactions, our sensitivity is competitive in comparison to existing astrophysical bounds on the decay of such dark matter into photon final states. In particular, we present the first direct detection limits for an axial-vector (vector) interaction which are the strongest in the mass range from 25 to 45 (35 to 50) keV/c.
Keywords
Cite
@article{arxiv.2206.02339,
title = {A Search for Light Fermionic Dark Matter Absorption on Electrons in PandaX-4T},
author = {Dan Zhang and Abdusalam Abdukerim and Zihao Bo and Wei Chen and Xun Chen and Yunhua Chen and Chen Cheng and Zhaokan 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 Jinrong He and Di Huang and Yanlin Huang and Zhou Huang and Ruquan Hou and Xiangdong Ji and Yonglin Ju and Chenxiang Li and Jiafu Li and Mingchuan Li and Shu Li and Shuaijie Li and Qing Lin and Jianglai Liu and Xiaoying Lu and Lingyin Luo and Yunyang Luo and Wenbo Ma and Yugang Ma and Yajun Mao and Nasir Shaheed and Yue Meng and Xuyang Ning and Ningchun Qi and Zhicheng Qian and Xiangxiang Ren and Changsong Shang and Xiaofeng Shang and Guofang Shen and Lin Si and Wenliang Sun and Andi Tan and Yi Tao and Anqing Wang and Meng Wang and Qiuhong Wang and Shaobo Wang and Siguang Wang and Wei Wang and Xiuli Wang and Zhou Wang and Yuehuan Wei and Mengmeng Wu and Weihao Wu and Jingkai Xia and Mengjiao Xiao and Xiang Xiao and Pengwei Xie and Binbin Yan and Xiyu Yan and Jijun Yang and Yong Yang and Chunxu Yu and Jumin Yuan and Ying Yuan and Xinning Zeng and Minzhen Zhang and Peng Zhang and Shibo Zhang and Shu Zhang and Tao Zhang and Yuanyuan Zhang and Li Zhao and Qibin Zheng and Jifang Zhou and Ning Zhou and Xiaopeng Zhou and Yong Zhou and Yubo Zhou and Shao-Feng Ge and Xiao-Gang He and Xiao-Dong Ma and Jie Sheng},
journal= {arXiv preprint arXiv:2206.02339},
year = {2023}
}