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Constraints on dark matter from AMS-02 electron data
Lu, Bo-Qiang1,2; Zong, Hong-Shi1
2015-11-13
Source PublicationPHYSICAL REVIEW D
Volume92Issue:10
AbstractHerein 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 HeadingsScience & Technology ; Physical Sciences
DOI10.1103/PhysRevD.92.103002
WOS KeywordGALACTIC COSMIC-RAYS ; EXCESS ; PROPAGATION ; ANTIPROTONS ; PARAMETERS ; ENERGIES ; SPECTRUM ; GALAXY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000368099300001
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16095
Collection暗物质和空间天文实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Lu, Bo-Qiang,Zong, Hong-Shi. Constraints on dark matter from AMS-02 electron data[J]. PHYSICAL REVIEW D,2015,92(10).
APA Lu, Bo-Qiang,&Zong, Hong-Shi.(2015).Constraints on dark matter from AMS-02 electron data.PHYSICAL REVIEW D,92(10).
MLA Lu, Bo-Qiang,et al."Constraints on dark matter from AMS-02 electron data".PHYSICAL REVIEW D 92.10(2015).
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