An Extension for Direct Gauge Mediation of Metastable Supersymmetry Breaking

TL;DR

This paper extends the ISS model for metastable supersymmetry breaking by introducing deformations and gauging flavor symmetry, enabling long-lived vacua, proper gaugino masses, and avoiding Landau poles, with phenomenologically viable parameters.

Contribution

It proposes a novel extension of the ISS model with deformations and gauged flavor symmetry, achieving long-lived vacua and realistic gaugino masses while addressing Landau pole issues.

Findings

Long-lived metastable vacua are achievable with the extension.

Proper gaugino masses can be generated in the model.

The model can satisfy phenomenological requirements with a low SUSY breaking scale (~100 TeV).

Abstract

We study the direct mediation of metastable supersymmetry breaking by a \Phi^2-deformation to the ISS model and extend it by splitting both Tr\Phi and Tr\Phi^2 terms in the superpotential and gauging the flavor symmetry. We find that with such an extension the enough long-lived metastable vacua can be obtained and the proper gaugino masses can be generated. Also, this allows for constructing a kind of models which can avoid the Landau pole problem. Especially, in our metastable vacua there exist a large region for the parameter m_3 which can satisfy the phenomenology requirements and allow for a low SUSY breaking scale (\sim 100 TeV).