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Abstract: We investigate the building of models with Dirac gauginos and perturbativegauge coupling unification. Here, in contrast to the MSSM, additional fieldsare required for unification, and these can naturally play the role of themessengers of supersymmetry breaking. We present a framework within which suchmodels can be constructed, including the constraints that the messenger sectormust satisfy; and the renormalisation group equations for the soft parameters,which differ from those of the MSSM. For illustration, we provide the spectrumat the electroweak scale for explicit models whose gauge couplings unify at thescale predicted by heterotic strings.



Autor: K. Benakli, M. D. Goodsell

Fuente: https://arxiv.org/







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