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arXiv 2205.08066hep-exhep-ph
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利用PandaX-II实验全曝光数据在简化模型中寻找二分量Majorana暗物质

A search for two-component Majorana dark matter in a simplified model using the full exposure data of PandaX-II experiment

Ying Yuan, Abdusalam Abdukerim, Zihao Bo, Wei Chen, Xun Chen, Yunhua Chen, Chen Cheng, Xiangyi Cui, Yingjie Fan, Deqing Fang, Changbo Fu, Mengting Fu, Lisheng G… 展开作者

Ying Yuan, Abdusalam Abdukerim, Zihao Bo, Wei Chen, Xun Chen, Yunhua Chen, Chen Cheng, 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, Mingchuan Li, Shu Li, Shuaijie Li, Qing Lin, Jianglai Liu, Xiaoying Lu, Lingyin Luo, Wenbo Ma, Yugang Ma, Yajun Mao, Yue Meng, Nasir Shaheed, Xuyang Ning, Ningchun Qi, Zhicheng Qian, Xiangxiang Ren, Changsong 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, Mengmeng Wu, Weihao Wu, Jingkai Xia, Mengjiao Xiao, Xiang Xiao, Pengwei Xie, Binbin Yan, Xiyu Yan, Jijun Yang, Yong Yang, Chunxu Yu, Jumin Yuan, Dan Zhang, Minzhen Zhang, Peng Zhang, Tao Zhang, Li Zhao, Qibin Zheng, Jifang Zhou, Ning Zhou, Xiaopeng Zhou, Yong Zhou

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摘要：

在两分量马约拉纳暗物质模型中，一个暗物质粒子可以从目标核上散射，变成一个稍微重一点的分量。在矢量玻色子介体简化模型的框架下，在直接探测实验中，树级和环级过程都对信号有贡献。在本文中，我们报告的搜索结果，这样的暗物质从PandaX-II实验，使用的全部数据的100.7吨$\cdot$天曝光。没有观察到显着的过剩，所以强约束的介质质量和暗物质质量的组合参数空间的推导。利用对撞机实验的互补搜索结果，可以排除大范围的参数空间。

英文摘要：

In the two-component Majorana dark matter model, one dark matter particle can scatter off the target nuclei, and turn into a slightly heavier component. In the framework of a simplified model with a vector boson mediator, both the tree-level and loop-level processes contribute to the signal in direct detection experiment. In this paper, we report the search results for such dark matter from PandaX-II experiment, using total data of the full 100.7 tonne$\cdot$day exposure. No significant excess is observed, so strong constraints on the combined parameter space of mediator mass and dark matter mass are derived. With the complementary search results from collider experiments, a large range of parameter space can be excluded.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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