On Supersymmetric Effective Theories of Axion

TL;DR

This paper explores effective supersymmetric theories involving axions, focusing on their coupling to supersymmetry breaking sectors and implications for gaugino masses, axion-gluon coupling, and cosmological constraints.

Contribution

It introduces a model where axion supermultiplets are coupled to supersymmetry breaking sectors, linking gaugino masses and axion interactions in a novel way.

Findings

Gaugino masses are generated through the same interactions as axion-gluon coupling.

The framework addresses the strong CP problem within a supersymmetric context.

Cosmological constraints on the model are discussed.

Abstract

We study effective theories of an axion in spontaneously broken supersymmetric theories. We consider a system where the axion supermultiplet is directly coupled to a supersymmetry breaking sector whereas the standard model sector is communicated with those sectors through loops of messenger fields. The gaugino masses and the axion-gluon coupling necessary for solving the strong CP problem are both obtained by the same effective interaction. We discuss cosmological constraints on this framework.