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Goldstone Gauginos.

Daniele S M Alves^1,2, Jamison Galloway¹, Matthew McCullough³

¹Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003, USA.

Physical Review Letters

|November 10, 2015

Summary

This summary is machine-generated.

Models of supersymmetry with Dirac gauginos are attractive but have a tachyon problem. This tachyon is absent if the right-handed gaugino is a Goldstone field of a broken flavor symmetry, preserving the model's success.

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Area of Science:

Theoretical particle physics
Supersymmetry beyond the Standard Model

Background:

Models of supersymmetry with Dirac gauginos offer an appealing extension to the Standard Model.
These models explain the lack of observed new states through suppressed production and

Purpose of the Study:

To resolve the tachyon issue in Dirac gaugino supersymmetry models.
To preserve the phenomenological successes of these models.

Main Methods:

Proposing a specific symmetry breaking mechanism.
Identifying the right-handed gaugino as a (pseudo-)Goldstone field.

Main Results:

The tachyon present in existing Dirac gaugino models is shown to be absent.
The phenomenological advantages of the models are maintained.

Conclusions:

A spontaneously broken anomalous flavor symmetry resolves the tachyon problem.
This provides a more natural and viable framework for Dirac gaugino supersymmetry.