Leptogenesis constraints from flavour symmetry induced lepton mixing
Leptogenesis constraints from flavour symmetry induced lepton mixing
复制标题
味道对称性引起的轻子混合对轻子发生的限制
DOI：
10.22323/1.120.0295
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
I. D. M. Varzielas
中科院分区：
文献类型：
--
作者：
I. D. M. Varzielas
在标准模型的规范群中加入味对称性的模型中，细生所必需的CP破坏不对称性可能与低能参数有关。一个特殊的情况下的兴趣是当味对称性产生一个确切的质量无关轻子混合计划，导致消失CP违反不对称性。我们提出了一个模型独立的讨论，证实这总是发生在无味leptogenesis在I型跷跷板的情况。
In models with flavour symmetries added to the gauge group of the Standard Model the CP-violating asymmetry necessary for leptogenesis may be related with low-energy parameters. A particular case of interest is when the flavour symmetry produces an exact mass independent lepton mixing scheme, leading to a vanishing CP-violating asymmetry. We present a model-independent discussion that confirms this always occurs for unflavoured leptogenesis in type I see-saw scenarios.