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题名: Constraints on dark matter from AMS-02 electron data
作者: Lu, Bo-Qiang1, 2; Zong, Hong-Shi1
刊名: PHYSICAL REVIEW D
出版日期: 2015-11-13
卷号: 92, 期号:10
DOI: 10.1103/PhysRevD.92.103002
文章类型: Article
英文摘要: Herein we use the measurements of the AMS-02 electron flux for the first time in order to derive limits on the dark-matter annihilation cross section and lifetime for the specific final states of mu(+)mu(-) and tau(+)tau(-). With the well-motivated assumption that the electrons were generated from astrophysical processes, we impose strong limits on the dark-matter properties that are insensitive of propagation parameters and nucleon injection parameters when the dark matter particle mass (m(chi)) is larger than similar to 200 GeV. Specifically, our limits are stronger than those derived from the positron fraction or flux for m(chi) > 100 GeV, and the dark-matter annihilation (or decay) origin of the AMS-02 positron anomaly is found to be disfavored.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]: Astronomy & Astrophysics ; Physics
关键词[WOS]: GALACTIC COSMIC-RAYS ; EXCESS ; PROPAGATION ; ANTIPROTONS ; PARAMETERS ; ENERGIES ; SPECTRUM ; GALAXY
收录类别: SCI
项目资助者: National Natural Science Foundation of China(11275097 ; 11475085 ; 11535005)
语种: 英语
WOS记录号: WOS:000368099300001
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内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16095
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Nanjing Univ, Sch Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
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