Models of Goldstone Gauginos

TL;DR

This paper discusses the Goldstone Gaugino mechanism in models with Dirac gauginos, offering solutions to tachyon issues and exploring SUSY QCD models and unification scenarios.

Contribution

It introduces the Goldstone Gaugino mechanism as a simple solution to tachyon problems in Dirac gaugino models and explores realistic SUSY QCD implementations.

Findings

Goldstone Gaugino mechanism eliminates tachyons in Dirac gaugino models.

SUSY QCD models realize the Goldstone Gaugino idea.

Scenarios for gauge unification are discussed.

Abstract

Models with Dirac gauginos provide appealing scenarios for physics beyond the standard model. They have smaller radiative corrections to the Higgs mass, a suppression of certain SUSY production processes, and ameliorated flavor constraints. Unfortunately, they also generally have tachyons, the solutions to which typically spoil these positive features. The recently proposed "Goldstone Gaugino" mechanism provides a simple solution that eliminates these tachyonic states. We provide details on this mechanism and explore models for its origin. In particular, we find SUSY QCD models that realize this idea simply, and discuss scenarios for unification.