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Liu, ZP; Wu, YL; Zhou, YF; Liu, ZP (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
Enhancement of dark matter relic density from late time dark matter conversions
Source PublicationEUROPEAN PHYSICAL JOURNAL C
Language英语
KeywordElectrons
AbstractWe demonstrate that if the dark matter (DM) in the Universe contains multiple components, the possible interactions between the DM components may convert the heavier DM components into lighter ones. It is then possible that the lightest DM component with an annihilation cross section significantly larger than that of the typical weakly interacting massive particle (WIMP) may lead to a relic density in agreement with cosmological observations, due to an enhancement of number density from the DM conversion process at late time after the thermal decoupling. This may provide an alternative source of boost factor relevant to the positron and electron excesses reported by the recent DM indirect search experiments.
2011
ISSN1434-6044
Volume71Issue:10Pages:1749
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10821504, 10905084]; Chinese Academy of Science
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14262
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLiu, ZP (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Liu, ZP,Wu, YL,Zhou, YF,et al. Enhancement of dark matter relic density from late time dark matter conversions[J]. EUROPEAN PHYSICAL JOURNAL C,2011,71(10):1749.
APA Liu, ZP,Wu, YL,Zhou, YF,&Liu, ZP .(2011).Enhancement of dark matter relic density from late time dark matter conversions.EUROPEAN PHYSICAL JOURNAL C,71(10),1749.
MLA Liu, ZP,et al."Enhancement of dark matter relic density from late time dark matter conversions".EUROPEAN PHYSICAL JOURNAL C 71.10(2011):1749.
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