PandaX-4T中轻费米子暗物质在电子上吸收过程的搜寻
高能物理 - 实验
2023-07-06 v3 高能天体物理现象
摘要
我们报道了利用PandaX-4T液氙实验收集的0.63吨·年曝光量，对带出射活性中微子的亚MeV费米子暗物质被电子吸收过程的搜寻。在预期本底之上未观测到显著信号。数据被解释为该类暗物质与电子间有效耦合的限制。对于轴矢量或矢量相互作用，我们的灵敏度与现有关于此类暗物质衰变为光子末态的天体物理界限相比具有竞争力。特别地，我们给出了轴矢量（矢量）相互作用的首个直接探测界限，其在25至45（35至50）keV/c质量范围内最强。
引用
@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}
}