Goldstone Gauginos
Daniele S. M. Alves, Jamison Galloway, Matthew McCullough, Neal Weiner

TL;DR
This paper proposes a solution to the tachyon problem in models of supersymmetry with Dirac gauginos by introducing the right handed gaugino as a (pseudo-)Goldstone boson of a spontaneously broken anomalous flavor symmetry, preserving phenomenological benefits.
Contribution
It introduces a novel approach where the right handed gaugino is a (pseudo-)Goldstone boson, eliminating the tachyon issue in Dirac gaugino models while maintaining their phenomenological advantages.
Findings
Tachyon absence in the proposed model.
Preservation of supersoft radiative corrections.
Consistency with collider phenomenology.
Abstract
Models of supersymmetry with Dirac gauginos provide an attractive scenario for physics beyond the standard model. The "supersoft" radiative corrections and suppressed SUSY production at colliders provide for more natural theories and an understanding of why no new states have been seen. Unfortunately, these models are handicapped by a tachyon which is naturally present in existing models of Dirac gauginos. We argue that this tachyon is absent, with the phenomenological successes of the model preserved, if the right handed gaugino is a (pseudo-)Goldstone field of a spontaneously broken anomalous flavor symmetry.
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