利用PandaX-II全部数据集约束自相互作用暗物质
高能物理 - 实验
2021-10-26 v2 高能物理 - 唯象学
摘要
自相互作用暗物质（SIDM）是为解决主流冷暗物质理论预言与星系观测之间差异而提出的主要候选者之一。许多SIDM模型预言存在一种介导强暗物质自相互作用的轻力载子。若该媒介子与标准模型粒子耦合，则可能在暗物质直接探测实验中产生特征信号。我们基于PandaX-II实验的全部数据集（总曝光量132吨·天）报告了对带轻媒介子的SIDM模型的搜寻。未发现超出本底的显著 excess，且我们的似然分析给出了对暗物质-核子耦合强度的强上限。我们进一步结合PandaX-II的约束与早期宇宙中轻元素丰度观测的约束，表明直接探测与宇宙学探针可对带轻媒介子的暗物质模型提供互补约束。
引用
@article{arxiv.2104.14724,
title = {Constraining self-interacting dark matter with the full dataset of PandaX-II},
author = {Jijun Yang and Abdusalam Abdukerim and Wei Chen and Xun Chen and Yunhua Chen and Chen 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 Shengming He and Di Huang and Yan Huang and Ran Huo and Yanlin Huang and Zhou Huang and Xiangdong Ji and Yonglin Ju and Shuaijie Li and Qing Lin and Huaxuan Liu and Jianglai Liu and Xiaoying Lu and Wenbo Ma and Yugang Ma and Yajun Mao and Yue Meng and Nasir Shaheed and Kaixiang Ni and Jinhua Ning and Xuyang Ning and Xiangxiang Ren and Changsong Shang and Guofang Shen and Lin Si and Andi Tan and Anqing Wang and Hongwei Wang and Meng Wang and QiuHong Wang and Siguang Wang and Wei Wang and Xiuli Wang and Zhou Wang and Mengmeng Wu and Shiyong Wu and Weihao Wu and Jingkai Xia and Mengjiao Xiao and Xiang Xiao and Pengwei Xie and Binbin Yan and Yong Yang and Chunxu Yu and Hai-Bo Yu and Jumin Yuan and Ying Yuan and Xinning Zeng and Dan Zhang and Tao Zhang and Li Zhao and Qibin Zheng and Jifang Zhou and Ning Zhou and Xiaopeng Zhou},
journal= {arXiv preprint arXiv:2104.14724},
year = {2021}
}
备注
5 pages, 5 figures