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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
Source PublicationPHYSICAL REVIEW D
KeywordRelic Density Cosmic-rays Particles Abundance Enhancement Energies
AbstractWe 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
Volume79Issue:11Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational 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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Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5304
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorGuo, WL , Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
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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