TY - JOUR
T1 - Search for Light Fermionic Dark Matter Absorption on Electrons in PandaX-4T
AU - (PandaX Collaboration)
AU - Zhang, Dan
AU - Abdukerim, Abdusalam
AU - Bo, Zihao
AU - Chen, Wei
AU - Chen, Xun
AU - Chen, Yunhua
AU - Cheng, Chen
AU - Cheng, Zhaokan
AU - Cui, Xiangyi
AU - Fan, Yingjie
AU - Fang, Deqing
AU - Fu, Changbo
AU - Fu, Mengting
AU - Geng, Lisheng
AU - Giboni, Karl
AU - Gu, Linhui
AU - Guo, Xuyuan
AU - Han, Ke
AU - He, Changda
AU - He, Jinrong
AU - Huang, Di
AU - Huang, Yanlin
AU - Huang, Zhou
AU - Hou, Ruquan
AU - Ji, Xiangdong
AU - Ju, Yonglin
AU - Li, Chenxiang
AU - Li, Jiafu
AU - Li, Mingchuan
AU - Li, Shu
AU - Li, Shuaijie
AU - Lin, Qing
AU - Liu, Jianglai
AU - Lu, Xiaoying
AU - Luo, Lingyin
AU - Luo, Yunyang
AU - Ma, Wenbo
AU - Ma, Yugang
AU - Mao, Yajun
AU - Shaheed, Nasir
AU - Meng, Yue
AU - Ning, Xuyang
AU - Qi, Ningchun
AU - Qian, Zhicheng
AU - Ren, Xiangxiang
AU - Shang, Changsong
AU - Shang, Xiaofeng
AU - Shen, Guofang
AU - Si, Lin
AU - Tan, Andi
N1 - Publisher Copyright:
© 2022 authors. Published by the American Physical Society.
PY - 2022/10/14
Y1 - 2022/10/14
N2 - We report a search on sub-MeV fermionic dark matter absorbed by electrons with an outgoing active neutrino using the 0.63 tonne year exposure collected by the 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 the electron. For axial-vector or vector interactions, our sensitivity is competitive in comparison to existing astrophysical bounds on the decay of such a dark matter candidate into photon final states. In particular, we present the first direct detection limits for a vector (axial-vector) interaction which are the strongest in the mass range from 35 to 55 (25 to 45) keV/c2 in comparison to other astrophysical and cosmological constraints.
AB - We report a search on sub-MeV fermionic dark matter absorbed by electrons with an outgoing active neutrino using the 0.63 tonne year exposure collected by the 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 the electron. For axial-vector or vector interactions, our sensitivity is competitive in comparison to existing astrophysical bounds on the decay of such a dark matter candidate into photon final states. In particular, we present the first direct detection limits for a vector (axial-vector) interaction which are the strongest in the mass range from 35 to 55 (25 to 45) keV/c2 in comparison to other astrophysical and cosmological constraints.
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U2 - 10.1103/PhysRevLett.129.161804
DO - 10.1103/PhysRevLett.129.161804
M3 - Article
C2 - 36306755
AN - SCOPUS:85140231259
SN - 0031-9007
VL - 129
JO - Physical review letters
JF - Physical review letters
IS - 16
M1 - 161804
ER -