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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
发表期刊EUROPEAN PHYSICAL JOURNAL C
语种英语
关键词Electrons
摘要We 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
卷号71期号:10页码:1749
学科领域Physics
收录类别SCI
项目资助者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 ; 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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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14262
专题理论物理所科研产出_SCI论文
通讯作者Liu, ZP (reprint author), Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.
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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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