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Constraints on dark matter annihilation cross section in the brane-world and quintessence scenarios
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
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号79期号:11页码:-
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.
部门归属[Guo, WL; Zhang, X] Chinese Acad Sci, Kavli Inst Theoret Phys China, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhang, X] Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China
关键词Relic Density Cosmic-rays Particles Abundance Enhancement Energies
学科领域Physics
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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收录类别SCI
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]
WOS记录号WOS:000267701300092
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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1978-2010年知识产出
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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