Search for Cosmic-Ray Boosted Sub-MeV Dark-Matter–Electron Scattering in PandaX-4T,Physical Review Letters

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Search for Cosmic-Ray Boosted Sub-MeV Dark-Matter–Electron Scattering in PandaX-4T
Physical Review Letters ( IF 8.1 ) Pub Date : 2024-09-05 , DOI: 10.1103/physrevlett.133.101805
Xiaofeng Shang ₁ , Abdusalam Abdukerim ₁ , Zihao Bo ₁ , Wei Chen ₁ , Xun Chen _{1,

1,

2,

3} , Yunhua Chen _{3,

4} , Chen Cheng ₅ , Zhaokan Cheng ₅ , Xiangyi Cui ₁ , Yingjie Fan ₆ , Deqing Fang ₇ , Lisheng Geng _{8,

8,

8,

9} , Karl Giboni _{1,

3} , Xuyuan Guo _{3,

4} , Chencheng Han ₁ , Ke Han _{1,

3} , Changda He ₁ , Jinrong He ₄ , Di Huang ₁ , Junting Huang _{1,

3} , Zhou Huang ₁ , Ruquan Hou _{2,

3} , Yu Hou ₁ , Xiangdong Ji ₁₀ , Xiangpan Ji ₁₁ , Yonglin Ju _{1,

3} , Chenxiang Li ₁ , Jiafu Li ₅ , Mingchuan Li _{3,

4} , Shuaijie Li _{1,

3,

4} , Tao Li ₅ , Qing Lin _{12,

12} , Jianglai Liu _{1,

1,

2,

3} , Congcong Lu ₁ , Xiaoying Lu _{13,

13} , Lingyin Luo ₁₄ , Yunyang Luo ₁₂ , Wenbo Ma ₁ , Yugang Ma ₇ , Yajun Mao ₁₄ , Yue Meng _{1,

2,

3} , Xuyang Ning ₁ , Binyu Pang _{13,

13} , Ningchun Qi _{3,

4} , Zhicheng Qian ₁ , Xiangxiang Ren _{13,

13} , Nasir Shaheed _{13,

13} , Xiyuan Shao ₁₁ , Guofang Shen ₈ , Manbin Shen _{3,

4} , Lin Si ₁ , Wenliang Sun _{3,

4} , Yi Tao _{1,

2} , Anqing Wang _{13,

13} , Meng Wang _{13,

13} , Qiuhong Wang ₇ , Shaobo Wang _{1,

1,

3} , Siguang Wang ₁₄ , Wei Wang _{5,

5} , Xiuli Wang ₁ , Xu Wang ₁ , Zhou Wang _{1,

1,

2,

3} , Yuehuan Wei ₅ , Mengmeng Wu ₅ , Weihao Wu _{1,

3} , Yuan Wu ₁ , Mengjiao Xiao ₁ , Xiang Xiao ₅ , Kaizhi Xiong _{3,

4} , Binbin Yan ₁ , Xiyu Yan ₅ , Yong Yang ₁ , Chunxu Yu ₁₁ , Ying Yuan ₁ , Zhe Yuan ₇ , Youhui Yun ₁ , Xinning Zeng ₁ , Minzhen Zhang ₁ , Peng Zhang _{3,

4} , Shibo Zhang ₁ , Shu Zhang ₅ , Tao Zhang _{1,

1,

2,

3} , Wei Zhang ₁ , Yang Zhang _{13,

13} , Yingxin Zhang _{13,

13} , Yuanyuan Zhang ₁ , Li Zhao _{1,

1,

3} , Jifang Zhou _{3,

4} , Ning Zhou _{1,

1,

2,

3} , Xiaopeng Zhou ₈ , Yubo Zhou ₁ , Zhizhen Zhou ₁ , Shao-Feng Ge _{1,

1} , Chen Xia _{1,

1} ,

Affiliation

We report the first search for the elastic scatterings between cosmic-ray boosted sub-MeV dark matter (DM) and electrons in the PandaX-4T liquid xenon experiment. Sub-MeV DM particles can be accelerated by scattering with electrons in the cosmic rays and produce detectable electron recoil signals in the detector. Using the commissioning data from PandaX-4T of

0.63 tonne \cdot year

exposure, we set new constraints on DM-electron scattering cross sections for DM masses ranging from

10 eV / c^{2}

3 keV / c^{2}

.

中文翻译：

在 PandaX-4T 中搜索宇宙射线增强的亚兆电子伏暗物质电子散射

我们报告了在 PandaX-4T 液氙实验中首次搜索宇宙射线增强的亚 MeV 暗物质 (DM) 和电子之间的弹性散射。亚兆电子伏特DM粒子可以通过宇宙射线中的电子散射来加速，并在探测器中产生可探测的电子反冲信号。使用PandaX-4T的调试数据