Dirac Gauginos, Gauge Mediation and Unification

Abstract

We investigate the building of models with Dirac gauginos and perturbative gauge coupling unification. Here, in contrast to the MSSM, additional fields are required for unification, and these can naturally play the role of the messengers of supersymmetry breaking. We present a framework within which such models can be constructed, including the constraints that the messenger sector must satisfy; and the renormalisation group equations for the soft parameters, which differ from those of the MSSM. For illustration, we provide the spectrum at the electroweak scale for explicit models whose gauge couplings unify at the scale predicted by heterotic strings.

31 pages, no figures, three tables. V2: minor corrections.

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• General Gauge Mediation
• Color-Octet Scalars of N=2 Supersymmetry at the LHC
• R-symmetric gauge mediation
• Testing the Majorana Nature of Gluinos and Neutralinos
• Dirac gaugino as leptophilic dark matter
• Semi-Direct Gauge Mediation with the 4-1 Model
• R-symmetric Gauge Mediation and the MRSSM
• Fine Tuning in General Gauge Mediation
• The study of sq_L sq_L production at LHC in the l^\pm l^\pm channel and sensitivity to other models
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