Deviation from Tribimaximal mixing using $A_{4}$ flavour model with five extra scalars

TL;DR

This paper presents a modified neutrino mass model with five extra scalars based on the $A_{4}$ symmetry, successfully explaining deviations from Tribimaximal mixing and aligning with current experimental and cosmological data.

Contribution

It introduces a novel $A_{4}$-based neutrino mass model with five extra scalars that accurately reproduces neutrino mixing and mass data, including predictions for neutrinoless double-beta decay.

Findings

Reproduces current neutrino mixing angles and masses

Predicts measurable neutrinoless double-beta decay parameter

Consistent with cosmological bounds on neutrino masses

Abstract

A modified neutrino mass model with five extra scalars is constructed using $A_{4}$ discrete symmetry group. The resultant mass matrix is able to give necessary deviation from Tribimaximal mixing which reproduces the current neutrino masses and mixing data with good accuracy. The model gives testable prediction for the future measurements of the neutrinoless double-beta decay parameter $|m_{\beta \beta}|$. The analysis is consistent with latest cosmological bound $\Sigma m_{i}\leq$ 0.12 eV.