Leptogenesis in models with keV sterile neutrino dark matter

Leptogenesis in models with keV sterile neutrino dark matter
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DOI:
10.1088/0954-3899/40/9/095202
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发表时间:
2012-04
期刊:
Journal of Physics G
影响因子:
--
通讯作者:
Fedor Bezrukov;A. Kartavtsev;M. Lindner
Fedor Bezrukov;A. Kartavtsev;M. Lindner
中科院分区:
其他
文献类型:
--
作者:
Fedor Bezrukov;A. Kartavtsev;M. Lindner

文献摘要

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我们用 keV 惰性中微子暗物质分析了标准模型规范扩展中的轻子发生。我们发现观测到的暗物质丰度和宇宙正确的重子不对称性可以同时出现在这些模型中。暗物质丰度和轻子发生都是由同一个重右手中微子的不平衡衰变控制的。
We analyze leptogenesis in gauge extensions of the Standard Model with keV sterile neutrino dark matter. We find that both the observed dark matter abundance and the correct baryon asymmetry of the Universe can simultaneously emerge in these models. Both the dark matter abundance and the leptogenesis are controlled by the out-of-equilibrium decays of the same heavy right-handed neutrino.