A radiative Type-II seesaw model with broken Symmetry Ansatz

TL;DR

This paper proposes a neutrino mass model combining type-II seesaw and Zee mechanisms, utilizing a broken symmetry approach to fit current neutrino oscillation data.

Contribution

It introduces a novel neutrino mass model that integrates type-II seesaw with Zee mechanism and broken symmetry to match experimental observations.

Findings

Two mixing angles are predicted: θ23 ≈ 46.08°, θ13 ≈ 8.69°

Model accommodates all current neutrino oscillation data

Neutrino masses generated at one-loop level via Zee mechanism

Abstract

Parametrization of the neutrino mass matrix in terms of well-known measured quantities is an attractive way to obtain a phenomenologically viable form. We propose a model of neutrino mass matrix based on type-II seesaw mechanism adhering the concept of badly broken symmetry. Two of the mixing angles are coming out as $\theta_{23}\sim46.08^{\circ}$, $\theta_{13}\sim8.69^{\circ}$. However, to accommodate the other oscillation parameters, we further add an extra doublet and the neutrino masses are generated through the Zee mechanism at the one loop level, and the modified model can admit all the extant data for a suitable choice of model parameters.