Enhanced cosmic-ray antihelium production from dark matter annihilation through light mediators
文献类型：期刊论文
| 作者 | Ding, Yu-Chen; Li, Nan2; Zhou, Yu-Feng
|
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2023 |
| 期号 | 3 |
| ISSN号 | 1475-7516 |
| 关键词 | CROSS-SECTIONS HIGH-ENERGY PROPAGATION KINEMATICS SATELLITE GALAXIES STARS |
| DOI | 10.1088/1475-7516/2023/03/051 |
| 英文摘要 | Cosmic-ray (CR) antihelium is an important probe for the indirect search of dark matter (DM) annihilation in the Galaxy. However, due to stringent constraints from the measurements of CR antiprotons and-y-rays, the flux of CR antihelium from the conventional DM direct annihilation into Standard Model final states is expected to be far below the sensitivity of the current experiments. We show that the production of antihelium can be significantly enhanced if the DM particles annihilate through light mediator particles with a mass mo approximate to 8 GeV close to the antihelium production threshold. After taking into account the constraints from the AMS-02 antiproton data and the Fermi-LAT-y-ray data on the spheroidal dwarf galaxies, we find that in this scenario the CR antihelium flux can be enhanced by three orders of magnitude, which makes it within the sensitivity of the ongoing AMS-02 experiment. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27972]  |
| 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.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Accelerat Phys & Technol, Beijing 100049, Peoples R China 4.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 5.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Yu-Chen,Li, Nan,Zhou, Yu-Feng. Enhanced cosmic-ray antihelium production from dark matter annihilation through light mediators[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2023(3). |
| APA | Ding, Yu-Chen,Li, Nan,&Zhou, Yu-Feng.(2023).Enhanced cosmic-ray antihelium production from dark matter annihilation through light mediators.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(3). |
| MLA | Ding, Yu-Chen,et al."Enhanced cosmic-ray antihelium production from dark matter annihilation through light mediators".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .3(2023). |
入库方式： OAI收割
来源：理论物理研究所
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