Constraints on dark matter annihilation cross section in the brane-world and quintessence scenarios
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2009 |
| 卷号 | 79期号:11页码:- |
| 关键词 | Relic Density Cosmic-rays Particles Abundance Enhancement Energies |
| ISSN号 | 1550-7998 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000267701300092 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5304]  |
| 专题 | 理论物理研究所_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 |
| 推荐引用方式 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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