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arXiv · 1306.5922

Leptonic Dynamical Yukawa Couplings

R. Alonso·M. B. Gavela·D. Hernandez·L. Merlo·S. Rigolin
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Abstract

A dynamical origin of the Yukawa couplings is a promising scenario to explain the flavour puzzle. The focus of this letter is set on the role of the neutrino Majorana character: when an $O(2)_{N_R}$ flavour symmetry acts on the right-handed neutrino sector, the minimum of the scalar potential allows for large mixing angles -in contrast to the simplest quark case- and predicts a maximal Majorana phase. This leads to a strong correlation between neutrino mass hierarchy and mixing pattern. Realistic solutions point to the existence of three heavy right-handed neutrinos.

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R. Alonso, M. B. Gavela, D. Hernandez, L. Merlo, S. Rigolin. 2013-11-07. Leptonic Dynamical Yukawa Couplings. https://doi.org/10.1007/jhep08(2013)069

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