Bimaximal Neutrino Mixing with Discrete Flavour Symmetries

TL;DR

This paper explores models using discrete non-Abelian symmetries to naturally realize bimaximal neutrino mixing, which aligns with experimental data and can be corrected by small terms.

Contribution

It introduces supersymmetric models based on S4 symmetry that naturally produce bimaximal neutrino mixing with realistic corrections.

Findings

Models successfully reproduce bimaximal mixing patterns

Corrections of order of the Cabibbo angle are naturally incorporated

Supersymmetric framework ensures stability of the mixing patterns

Abstract

In view of the fact that the data on neutrino mixing are still compatible with a situation where Bimaximal mixing is valid in first approximation and it is then corrected by terms of order of the Cabibbo angle, we present examples where these properties are naturally realized. The models are supersymmetric in 4-dimensions and based on the discrete non-Abelian flavour symmetry S4.