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Thermal leptogenesis in a model with mass varying neutrinos
Bi XJ(毕效军); Gu PH(顾佩洪); Zhang XM(张新民); Bi, XJ; Gu, PH; Wang, XL; Zhang, XM
2004
发表期刊PHYSICAL REVIEW D
卷号69期号:11页码:113007
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
文章类型Review
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.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.69.113007
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000222502900017
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被引频次:57[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240928
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Bi XJ,Gu PH,Zhang XM,et al. Thermal leptogenesis in a model with mass varying neutrinos[J]. PHYSICAL REVIEW D,2004,69(11):113007.
APA 毕效军.,顾佩洪.,张新民.,Bi, XJ.,Gu, PH.,...&Zhang, XM.(2004).Thermal leptogenesis in a model with mass varying neutrinos.PHYSICAL REVIEW D,69(11),113007.
MLA 毕效军,et al."Thermal leptogenesis in a model with mass varying neutrinos".PHYSICAL REVIEW D 69.11(2004):113007.
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