A Simple Model of Direct Gauge Mediation of Metastable Supersymmetry Breaking

TL;DR

This paper presents a straightforward model for direct gauge mediation of metastable supersymmetry breaking, modifying the ISS model without extra matter, ensuring long-lived vacua and viable gaugino mass generation.

Contribution

It introduces a simple deformation of the ISS model that explicitly breaks R-symmetry, achieves metastable SUSY breaking with realistic phenomenology, and avoids Landau pole issues.

Findings

Metastable SUSY breaking vacuum is sufficiently long-lived.

Model generates nonzero gaugino masses through direct coupling.

Evades Landau pole problem in gauge mediation.

Abstract

We construct a model of direct gauge mediation of metastable SUSY breaking by simply deforming the Intriligator, Seiberg and Shih model in terms of a dual meson superpotential mass term. No extra matter field is introduced. The deformation explicitly breaks a U(1)_R symmetry and a pseudo moduli have a nonzero VEV at one-loop. Our metastable SUSY breaking vacuum turns out to be sufficiently long-lived. By gauging a subgroup of flavor symmetry, our model can directly couple to the standard model, which leads to nonvanishing gaugino mass generation. It is also shown that our model can evade the Landau pole problem. We show the parameters in the SUSY breaking sector are phenomenologically constrained.