Lepton mixing and neutrino masses from A5 and CP

TL;DR

This paper explores how A5 and CP symmetries can predict lepton mixing patterns and neutrino masses, identifying four viable mixing schemes consistent with experimental data and providing explicit models within the Weinberg operator framework.

Contribution

It introduces a framework combining A5 and CP symmetries to predict lepton mixing and neutrino masses, with explicit model realization using the Weinberg operator.

Findings

Four mixing patterns fit oscillation data within 3sigma confidence.

The framework predicts neutrino mass spectra consistent with observations.

An explicit realization of the model using the Weinberg operator is provided.

Abstract

Some properties of lepton mixing and neutrino masses can be computed under the assumption of A5 and CP as a symmetry in the leptonic sector. The results show that four mixing patterns accommodate well the oscillation data, i.e. all the mixing angles are in the 3sigma confidence region. We also introduce an explicit realization of this framework in the case of the Weinberg operator where the neutrino mass spectrum can be computed.