Axion induced SUSY breaking and focus point gaugino mediation

TL;DR

This paper proposes a unified framework where a single axion-related superfield causes SUSY breaking, its mediation, and solves the strong CP problem, leading to a focus point gaugino mediation scenario that explains the electroweak scale with moderate tuning.

Contribution

It introduces a novel scenario linking axion multiplets to SUSY breaking, mediation, and the strong CP problem, providing a new basis for focus point gaugino mediation.

Findings

The scenario naturally incorporates the string axion multiplet as the SUSY breaking field.

It offers a mechanism to explain the electroweak scale with moderate parameter tuning.

The model unifies multiple phenomena within a single superfield framework.

Abstract

We consider a scenario where the supersymmetry breaking and its mediation, and the cancellation of the theta parameter of SU(3)c are all caused by a single chiral multiplet. The string axion multiplet is a natural candidate of such a single superfield. We show that the scenario provides a convincing basis of focus point gaugino mediation, where the electroweak scale is explained with a moderate tuning among the parameters of the theory.