Atmospheric dark matter and XENON1T excess

doi:10.1103/PhysRevD.102.115028

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	Atmospheric dark matter and XENON1T excess
	Su, Liangliang 1,2; Wang, Wenyu 3; Wu, Lei 1; Yang, Jin Min 4,5; Zhu, Bin 2,6
刊名	PHYSICAL REVIEW D
	2020
卷号	102 期号:11 页码:115028
关键词	SEARCH
ISSN号	2470-0010
DOI	10.1103/PhysRevD.102.115028
英文摘要	Very recently, the XENON1T Collaboration has reported an intriguing electron recoil excess, which may imply light dark matter. To interpret this anomaly, we propose the atmospheric dark matter (ADM) from the inelastic collision of cosmic rays (CRs) with the atmosphere. Because of the boost effect of high-energy CRs, we show that the light ADM can be fast moving and successfully fit the observed electron recoil spectrum through the ADM-electron scattering process. Meanwhile, our ADM predicts the scattering cross section sigma(e) similar to O(10(-38) - 10(-39) cm(2)) and thus can evade other direct detection constraints. The search for light meson rare decays, such as eta -> pi + (E) over bar (T), would provide a complementary probe of our ADM in the future.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27271]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Nanjing Normal Univ, Dept Phys, Nanjing 210023, Peoples R China 2.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Peoples R China 3.Yantai Univ, Sch Phys, Yantai 264005, Peoples R China 4.Beijing Univ Technol, Fac Sci, Beijing 100124, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 7.Chung Ang Univ, Dept Phys, Seoul 06974, South Korea
推荐引用方式 GB/T 7714	Su, Liangliang,Wang, Wenyu,Wu, Lei,et al. Atmospheric dark matter and XENON1T excess[J]. PHYSICAL REVIEW D,2020,102(11):115028.
APA	Su, Liangliang,Wang, Wenyu,Wu, Lei,Yang, Jin Min,&Zhu, Bin.(2020).Atmospheric dark matter and XENON1T excess.PHYSICAL REVIEW D,102(11),115028.
MLA	Su, Liangliang,et al."Atmospheric dark matter and XENON1T excess".PHYSICAL REVIEW D 102.11(2020):115028.