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arXiv · 1710.06498

Flavour-symmetric type-II Dirac neutrino seesaw mechanism

Cesar Bonilla·J. M. Lamprea·Eduardo Peinado·Jose W. F. Valle
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Abstract

We propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the "golden" flavour-dependent bottom-tau mass relation, requires an inverted neutrino mass ordering and non-maximal atmospheric mixing angle. Using the latest neutrino oscillation global fit we derive restrictions on the oscillation parameters, such as a correlation between Dirac CP phase and the lightest neutrino mass.

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Cesar Bonilla, J. M. Lamprea, Eduardo Peinado, Jose W. F. Valle. 2017-10-17. Flavour-symmetric type-II Dirac neutrino seesaw mechanism. https://doi.org/10.1016/j.physletb.2018.02.022

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