Gauging Flavour in Meta-Stable Susy Breaking Models

TL;DR

This paper investigates the effects of gauging a flavor symmetry in the ISS model, exploring how it influences the stability and vacuum structure of supersymmetry breaking, with implications for meta-stability and non-perturbative effects.

Contribution

It introduces a modification to the ISS model by gauging flavor symmetry and analyzes the resulting changes in the theory's vacuum structure and stability considerations.

Findings

Gauging flavor symmetry affects the vacuum structure.

Non-perturbative effects can shift the supersymmetric vacuum.

Meta-stability depends on couplings and requires further analysis.

Abstract

We modify the first ISS model (hep-th/0602239) by gauging a diagonal flavour symmetry. We add additional multiplets transforming as fundamentals and anti-fundamentals under the gauged flavour group. Their number is chosen such that the microscopic theory is asymptotically free whereas in the Seiberg dual (w.r.t. the colour group) it changes to an infrared free theory. Non perturbative effects within the flavour group can correct the location of the supersymmetric vacuum. Statements about meta-stability of the susy breaking vacuum would require a two loop calculation. For general couplings, the question whether gauging flavour destabilises susy breaking remains open.