Constraining light dark matter upscattered by ultrahigh-energy cosmic rays
文献类型：期刊论文
| 作者 | Xia, Chen; Xu, Yan-Hao; Zhou, Yu-Feng
|
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2021 |
| 卷号 | 969页码:115470 |
| 关键词 | SPECTRUM NUCLEONS RANGE |
| ISSN号 | 0550-3213 |
| DOI | 10.1016/j.nuclphysb.2021.115470 |
| 英文摘要 | Light halo dark matter (DM) particles upscattered by high-energy cosmic rays (CRs) can be energetic, and become detectable by conventional direct detection experiments. The current constraints derived from space-based direct CR measurements can reach O(10(-31)) cm(2) for a constant DM-nucleon scattering cross section. We show that if the CR energy spectrum follows a power law of type similar to E-3, the derived constraints on the scattering cross section will be highly insensitive to DM particle mass. This suggests that ultrahigh-energy CRs (UHECRs) indirectly measured by ground-based detectors can be used to place constraints on ultralight DM particles, as E-3 is a very good approximation of the UHECR energy spectrum up to energy similar to 10(20) eV. Using the recent UHECR flux data, we show that the current constraints derived from space-based CR measurements can in principle be extended to ultralight DM particles far below eV scale. (C) 2021 The Author(s). Published by Elsevier B.V. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27294]  |
| 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.[Xia, Chen 2.Xu, Yan-Hao 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 5.UCAS, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China 6.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Chen,Xu, Yan-Hao,Zhou, Yu-Feng. Constraining light dark matter upscattered by ultrahigh-energy cosmic rays[J]. NUCLEAR PHYSICS B,2021,969:115470. |
| APA | Xia, Chen,Xu, Yan-Hao,&Zhou, Yu-Feng.(2021).Constraining light dark matter upscattered by ultrahigh-energy cosmic rays.NUCLEAR PHYSICS B,969,115470. |
| MLA | Xia, Chen,et al."Constraining light dark matter upscattered by ultrahigh-energy cosmic rays".NUCLEAR PHYSICS B 969(2021):115470. |
入库方式： OAI收割
来源：理论物理研究所
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