Unificaxion

TL;DR

This paper proposes a unified axion-based solution to dark matter, gauge coupling unification, and the strong CP problem, providing testable predictions for axion mass and photon coupling.

Contribution

It demonstrates that a common axion model can address multiple fundamental issues and yields specific, measurable predictions without detailed model specifications.

Findings

Predicts axion mass range consistent with dark matter

Provides axion-photon coupling estimates for experiments

Links axion properties to gauge unification and CP problem

Abstract

Dark matter, gauge coupling unification, and the strong CP problem find a common and simple solution (in the absence of naturalness) within axion models. We show that such solution, even without specifying the details of the model implementation, makes testable predictions for the experimentally measurable axion parameters: the axion mass and its coupling to photons.