Quark Mixing from Mass Matrix Model with Flavor 2 (\leftrightarrow) 3 Symmetry

TL;DR

This paper proposes a universal mass matrix model with flavor 2↔3 symmetry that explains quark mixing data, showing consistency with experiments and relating to previous models with specific texture assumptions.

Contribution

It introduces a seesaw-invariant mass matrix model with flavor 2↔3 symmetry applicable to all quarks and leptons, fitting experimental data.

Findings

Model fits all quark mixing experimental data.

Parameter values are close to those in models with a vanishing (1,1) element.

The model's structure is consistent with a universal texture for quarks and leptons.

Abstract

We consider an universal mass matrix model which has a seesaw-invariant structure with the most general texture based on flavor 2 (\leftrightarrow) 3 symmetry common to all quarks and leptons. The CKM quark mixing matrix of the model is analyzed. It is shown that the model is consistent with all the experimental data of quark mixings by tuning free parameters of the model. We also show that the values of parameters of the present model consistent with the experimental data are not far from the ones of the mass matrix model with a vanishing (1,1) element.