Generating the Cabibbo Angle in Flavored Gauge Mediation Models with Discrete Non-Abelian Symmetries

TL;DR

This paper investigates how discrete non-Abelian symmetries in flavored gauge mediation models can generate fermion mass hierarchies and the Cabibbo angle, highlighting the role of nonrenormalizable couplings for realistic quark mixing.

Contribution

It introduces a framework where a discrete symmetry links Higgs and messenger fields, enabling the generation of the Cabibbo angle through nonrenormalizable interactions.

Findings

Perturbative couplings do not produce viable quark mixing.

Nonrenormalizable couplings can generate the Cabibbo angle.

Phenomenological implications of nonrenormalizable interactions are explored.

Abstract

We explore the generation of fermion masses and quark mixing angles within flavored gauge mediation models of supersymmetry breaking in which the Higgs and messenger doublets are connected by a discrete non-Abelian symmetry. In this framework, the Higgs-messenger symmetry, which we take for concreteness to be the discrete group $\mathcal{S}_3$, also plays the role of a (partial) family symmetry. We investigate mechanisms for generating mass hierarchies for the lighter quark generations and generating the Cabibbo angle within this class of models. While perturbations of the couplings at the renormalizable level do not lead to phenomenologically viable quark mixing parameters, we show that the Cabibbo angle can be generated via couplings at the nonrenormalizable level and explore the phenomenological implications of this scenario.