Quasi two-zero texture in Type-II seesaw at fixed points from modular $A_4$ symmetry

TL;DR

This paper proposes a neutrino mass model using type-II seesaw and modular $A_4$ symmetry, which satisfies cosmological bounds and offers predictive power in neutrino physics by analyzing fixed points of the modulus.

Contribution

It introduces a quasi two-zero neutrino texture within a type-II seesaw framework utilizing modular $A_4$ symmetry at fixed points, addressing cosmological mass bounds.

Findings

Model satisfies cosmological bounds on neutrino masses.

Predictions made at specific fixed points of the modulus.

Compatible with CMB and BAO observational data.

Abstract

We study a quasi two-zero neutrino texture based on a type-II seesaw model with modular $A_4$ symmetry to evade the cosmological bound on the sum of neutrino masses while keeping some predictability in the neutrino sector. Working on three fixed points for modulus, we discuss predictions of the model and show the allowed points satisfying the cosmological bound on neutrino mass from both CMB and CMB+BAO data.