Constraints on dark matter annihilation and decay from the isotropic gamma-ray background
文献类型：期刊论文
| 作者 | Liu, Wei; Bi, Xiao-Jun; Lin, Su-Jie; Yin, Peng-Fei |
| 刊名 | Chinese physics c
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 41期号:4页码:13 |
| ISSN号 | 1674-1137 |
| 关键词 | Dark matter theory Gamma-ray theory Dark matter simulations Gamma-rays: diffuse background |
| DOI | 10.1088/1674-1137/41/4/045104 |
| 通讯作者 | Liu, wei(liuwei@ihep.ac.cn) |
| 英文摘要 | We study the constraints on dark matter (dm) annihilation/decay from the fermi-lat isotropic gamma-ray background (igrb) observation. we consider the contributions from both extragalactic and galactic dm components. for dm annihilation, the evolution of extragalactic dm halos is taken into account. we find that the igrb annihilation constraints under some dm subhalo models can be comparable to those derived from the observations of dwarf spheroidal galaxies and cmb. we also use the igrb results to constrain the parameter regions accounting for the latest ams-02 electron-positron anomaly. we find that the majority of dm annihilation/decay channels are strongly disfavored by the latest fermi-lat igrb observation; only dm decays to ii-i-r and 4/./, channels may be valid. |
| WOS关键词 | LUMINOSITY FUNCTION ; CROSS-CORRELATIONS ; GALAXY CATALOGS ; COSMIC MEV ; FERMI ; ELECTRONS ; HALOES ; RADIATION ; EMISSION ; SEARCHES |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | CHINESE PHYSICAL SOC |
| WOS记录号 | WOS:000400124800018 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177212 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Liu, Wei |
| 作者单位 | Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wei,Bi, Xiao-Jun,Lin, Su-Jie,et al. Constraints on dark matter annihilation and decay from the isotropic gamma-ray background[J]. Chinese physics c,2017,41(4):13. |
| APA | Liu, Wei,Bi, Xiao-Jun,Lin, Su-Jie,&Yin, Peng-Fei.(2017).Constraints on dark matter annihilation and decay from the isotropic gamma-ray background.Chinese physics c,41(4),13. |
| MLA | Liu, Wei,et al."Constraints on dark matter annihilation and decay from the isotropic gamma-ray background".Chinese physics c 41.4(2017):13. |
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来源：高能物理研究所
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