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Guo, Wan-Lei; Zhang, Xin; Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
Constraints on dark matter annihilation cross section in the brane-world and quintessence scenarios
发表期刊PHYSICAL REVIEW D
关键词Relic Density Cosmic-rays Particles Abundance Enhancement Energies
摘要We investigate the dark matter annihilation in the brane-world and quintessence scenarios, in which the modified cosmological expansion rate can enhance the thermal relic density of dark matter. According to the observed dark matter abundance, we constrain the thermally averaged annihilation cross section <> in these two scenarios. In addition, the big bang nucleosynthesis and the partial-wave unitarity are also used to place bounds on <>. It is found that both scenarios can lead to a large annihilation cross section, so they can be used to explain the recent PAMELA, ATIC, and PPB-BETS anomalies.
2009
ISSN1550-7998
卷号79期号:11页码:-
学科领域Physics
收录类别SCI
项目资助者National Natural Science Foundation of China (NSFC)[10847163, 10705041] ; National Natural Science Foundation of China (NSFC)[10847163, 10705041] ; National Natural Science Foundation of China (NSFC)[10847163, 10705041] ; National Natural Science Foundation of China (NSFC)[10847163, 10705041]
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被引频次:16[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/311006/5304
专题理论物理所科研产出_SCI论文
通讯作者Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
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Guo, Wan-Lei,Zhang, Xin,Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China. Constraints on dark matter annihilation cross section in the brane-world and quintessence scenarios[J]. PHYSICAL REVIEW D,2009,79(11):-.
APA Guo, Wan-Lei,Zhang, Xin,&Guo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.(2009).Constraints on dark matter annihilation cross section in the brane-world and quintessence scenarios.PHYSICAL REVIEW D,79(11),-.
MLA Guo, Wan-Lei,et al."Constraints on dark matter annihilation cross section in the brane-world and quintessence scenarios".PHYSICAL REVIEW D 79.11(2009):-.
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