# Unified Models of the QCD Axion and Supersymmetry Breaking

## TL;DR

This paper proposes a unified framework where supersymmetry breaking and the QCD axion originate from the same dynamics, leading to heavy axion-related particles and specific constraints on model parameters.

## Contribution

It introduces a class of models linking supersymmetry breaking and the QCD axion, with shared mediators and implications for particle masses and decay constants.

## Key findings

- Axion resides in the supersymmetry breaking sector
- Heavy saxion and axino are predicted
- Constraints on axion decay constant and gravitino mass

## Abstract

Similarities between the gauge meditation of supersymmetry breaking and the QCD axion model suggest that they originate from the same dynamics. We present a class of models where supersymmetry and the Peccei-Quinn symmetry are simultaneously broken. The messengers that mediate the effects of these symmetry breakings to the Standard Model are identical. Since the axion resides in the supersymmetry breaking sector, the saxion and the axino are heavy. We show constraints on the axion decay constant and the gravitino mass.