Knowledge Management System of Institute of Theoretical Physics, CAS
Ding, Yu-Chen; Li, Nan4; Wei, Chun-Cheng; Zhou, Yu-Feng
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| High energy window for probing dark matter with cosmic-ray antideuterium and antihelium | |
| Source Publication | CHINESE PHYSICS C
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| Language | 英语 |
| Keyword | PROPAGATION ANTIPROTONS ANNIHILATION |
| Abstract | Cosmic-ray (CR) anti-nuclei are often considered important observables for indirect dark matter (DM) detection at low kinetic energies, below GeV per nucleon. Since the primary CR fluxes drop quickly towards high energies, the secondary anti-nuclei in CR are expected to be significantly suppressed in high energy regions (greater than or similar to 100 GeV per nucleon). If DM particles are heavy, the annihilation productions of DM can be highly boosted, and thus the fluxes of anti-nuclei produced by DM annihilation may exceed the secondary background at high energies, which opens a high energy window for indirect DM detection. We investigate the possibility of detecting heavy DM particles which annihilate into high energy anti-nuclei. We use the Monte Carlo generators PYTHIA, EPOS-LHC and DPMJET and the coalescence model to simulate the production of anti-nuclei, and constrain the DM annihilation cross-sections by using the AMS-02 and HAWC antiproton data and the HESS galactic center gamma-ray data. We fmd that the conclusion depends on the choice of DM density profiles. For the "Cored" type profile with a DM particle mass greater than or similar to 10 TeV, the contributions from DM annihilation can exceed the secondary background in high energy regions, which opens the high energy window, while for the "Cuspy" type profile, the excess disappears. |
| 2021 | |
| ISSN | 1674-1137 |
| Volume | 45Issue:6Pages:65102 |
| Cooperation Status | 国内 |
| Subject Area | Physics |
| MOST Discipline Catalogue | Physics, Nuclear ; Physics, Particles & Fields |
| DOI | 10.1088/1674-1137/abf13a |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27349 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Beijing, Peoples R China 4.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 5.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Accelerat Phys & Technol, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Ding, Yu-Chen,Li, Nan,Wei, Chun-Cheng,et al. High energy window for probing dark matter with cosmic-ray antideuterium and antihelium[J]. CHINESE PHYSICS C,2021,45(6):65102. |
| APA | Ding, Yu-Chen,Li, Nan,Wei, Chun-Cheng,&Zhou, Yu-Feng.(2021).High energy window for probing dark matter with cosmic-ray antideuterium and antihelium.CHINESE PHYSICS C,45(6),65102. |
| MLA | Ding, Yu-Chen,et al."High energy window for probing dark matter with cosmic-ray antideuterium and antihelium".CHINESE PHYSICS C 45.6(2021):65102. |
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