Flavored Non-Minimal Left-Right Symmetric Model Fermion Masses and Mixings

TL;DR

This paper explores fermion masses and flavor mixing within a non-minimal left-right symmetric model using specific flavor symmetries, successfully fitting experimental data for quarks and neutrinos.

Contribution

It introduces a novel non-minimal left-right symmetric model with flavor symmetries that accurately reproduces quark and neutrino mixing parameters.

Findings

CKM matrix fits well with experimental data

Lepton sector angles are non-zero and non-maximal

Model favors inverted and degenerate neutrino hierarchies

Abstract

A complete study on the fermion masses and flavor mixing is presented in a non-minimal left-right symmetric model (NMLRMS) where the ${\bf S}_{3}\otimes {\bf Z}_{2}\otimes {\bf Z}^{e}_{2}$ flavor symmetry drives the Yukawa couplings. In the quark sector, the mass matrices possess a kind of the generalized Fritzsch textures that allow us to fit the CKM mixing matrix in good agreement to the last experimental data. In the lepton sector, on the other hand, a soft breaking of the $\mu\leftrightarrow \tau$ symmetry provides a non zero and non maximal reactor and atmospheric angles, respectively. The inverted and degenerate hierarchy are favored in the model where a set of free parameters is found to be consistent with the current neutrino data.