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arXiv · 1009.6232

Leptogenesis constraints from flavour symmetry induced lepton mixing

Ivo de Medeiros Varzielas
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Abstract

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.

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Ivo de Medeiros Varzielas. 2010-09-30. Leptogenesis constraints from flavour symmetry induced lepton mixing. https://arxiv.org/abs/1009.6232

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