Abstract
We show that simultaneous gauge and supersymmetry breaking can be induced by radiative corrections, à la Coleman-Weinberg. When a certain correlation among the superpotential parameters is present, a local supersymmetry-breaking minimum is induced in the effective potential of a gauge non-singlet field, in a region where the tree-level potential is almost flat. Supersymmetry breaking is then transmitted to the MSSM through gauge and chiral messenger loops, thus avoiding the suppression of gaugino masses characteristic of direct gauge mediation models. The use of a single field ensures that no dangerous tachyonic scalar masses are generated at the one-loop level. We illustrate this mechanism with an explicit example based on an SU(5) model with a single adjoint. An interesting feature of the scenario is that the GUT scale is increased with respect to standard unification, thus allowing for a larger colour Higgs triplet mass, as preferred by the experimental lower bound on the proton lifetime.
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ArXiv ePrint: 1202.2845
Laboratoire de la Direction des Sciences de la Matière du Commissariat à l’Energie Atomique et Unité de Recherche associée au CNRS (URA 2306). (Institut de Physique Théorique, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex, France)
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Bajc, B., Lavignac, S. & Mede, T. Supersymmetry breaking induced by radiative corrections. J. High Energ. Phys. 2012, 185 (2012). https://doi.org/10.1007/JHEP07(2012)185
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DOI: https://doi.org/10.1007/JHEP07(2012)185