Thermal leptogenesis in a model with mass varying neutrinos
文献类型：期刊论文
| 作者 | Bi, XJ; Gu, PH; Wang, XL; Zhang, XM; Bi, XJ , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100039, Peoples R China. |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2004 |
| 卷号 | 69期号:11页码:- |
| ISSN号 | 1550-7998 |
| 关键词 | Lepton-number Violation Heavy Majorana Neutrinos Probe Wmap Observations Weinberg-salam Theory Electroweak Baryogenesis Non-conservation Cp Violation Super-kamiokande Baryon Asymmetry Early Universe |
| 英文摘要 | In this paper we consider the possibility of the neutrino mass varying during the evolution of the Universe and study its implications on leptogenesis. Specifically, we take the minimal seesaw model of neutrino masses and introduce a coupling between the right-handed neutrinos and the dark energy scalar field, the quintessence. In our model, the right-handed neutrino masses change as the quintessence evolves. We then examine in detail the parameter space of this model allowed by the observed baryon number asymmetry. Our results show that it is possible to lower the reheating temperature in this scenario in comparison with the case that the neutrino masses are unchanged, which helps solve the gravitino problem. Furthermore, a degenerate neutrino mass pattern with m(i) larger than the upper limit given in the minimal leptogenesis scenario is permitted. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000222502900017 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14070]  |
| 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 | Bi, XJ , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100039, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Bi, XJ,Gu, PH,Wang, XL,et al. Thermal leptogenesis in a model with mass varying neutrinos[J]. PHYSICAL REVIEW D,2004,69(11):-. |
| APA | Bi, XJ,Gu, PH,Wang, XL,Zhang, XM,&Bi, XJ , Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100039, Peoples R China..(2004).Thermal leptogenesis in a model with mass varying neutrinos.PHYSICAL REVIEW D,69(11),-. |
| MLA | Bi, XJ,et al."Thermal leptogenesis in a model with mass varying neutrinos".PHYSICAL REVIEW D 69.11(2004):-. |
入库方式： OAI收割
来源：理论物理研究所
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