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A Search for Light Fermionic Dark Matter Absorption on Electrons in PandaX-4T

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arxiv 2206.02339 v3 pith:4LCJATIU submitted 2022-06-06 hep-ex astro-ph.HE

Dan Zhang , Abdusalam Abdukerim , Zihao Bo , Wei Chen , Xun Chen , Yunhua Chen , Chen Cheng , Zhaokan Cheng
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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 Jiafu Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yajun Mao Nasir Shaheed Yue Meng Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Xiaofeng 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 Yuehuan Wei Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Jijun Yang Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Xinning Zeng Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Yuanyuan Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou Yubo Zhou Shao-Feng Ge Xiao-Gang He Xiao-Dong Ma Jie Sheng
This is my paper · ORCID
classification hep-exastro-ph.HE
keywords darkmatterelectronsaxial-vectorfermioniclimitspandax-4tsearch
verification ladder T0 review T1 audit T2 compute T3 formal
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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$^2$.

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  1. Supernova cooling from neutrino-devouring dark matter

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Supernova cooling excludes fermionic dark matter produced by neutrino scattering down to cross sections of about 10^-58 cm^2 for electrons and 10^-56 cm^2 for nucleons across the keV to 100 MeV mass range.

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