Axionic Extensions of the Supersymmetric Standard Model

TL;DR

This paper explores axionic extensions to the supersymmetric Standard Model, addressing key issues like the strong CP problem and proposing solutions that also enable dark matter candidates, baryogenesis, and neutrino masses with testable predictions.

Contribution

It introduces axionic extensions that simultaneously solve multiple problems in the supersymmetric Standard Model, providing new theoretical insights and experimental prospects.

Findings

Automatic resolution of several theoretical issues

Viable dark matter candidates identified

Testable predictions at TeV energy scale

Abstract

The Supersymmetric Standard Model is a benchmark theoretical framework for particle physics, yet it suffers from a number of deficiencies, chief among which is the strong CP problem. Solving this with an axion in the context of selected new particles, it is shown in three examples that other problems go away automatically as well, resulting in (-)^L and (-)^{3B} conservation, viable combination of two dark-matter candidates, successful baryogenesis, seesaw neutrino masses, and verifiable experimental consequences at the TeV energy scale.