GUT and SUSY Breaking by the Same Field

Abstract

We present a model in which the same modulus field breaks both SUSY and a simple GUT gauge group down to the SM gauge group. The modulus is stabilized by the inverted hierarchy mechanism in a perturbative region so that the model is calculable. This is the first example of this kind in the literature. All mass scales (other than the Planck scale) are generated dynamically. In one of the models doublet-triplet splitting is achieved naturally by the sliding singlet mechanism while another model requires fine tuning. The gauge mediation contribution to the right handed slepton (mass)${}^2$ is negative. But, for the modulus vacuum expectation value close to the GUT scale, the supergravity contribution to the slepton (mass)${}^2$ is comparable to the gauge mediation contribution and thus a realistic spectrum can be attained.

LaTeX, 14 pages

References in corpus (6)

• Extracting Supersymmetry-Breaking Effects from Wave-Function Renormalization
• Dynamical Soft Terms with Unbroken Supersymmetry
• The Sliding-singlet Mechanism Revived
• Supersymmetric Dynamical Generation of the Grand Unification Scale
• From Planck to GUT via Dimensional Transmutation
• Supergravity Resolution of the Unification to Planck Scale Hierarchy

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• The New Minimal Supersymmetric GUT : Spectra, RG analysis and fitting formulae
• Product Groups, Discrete Symmetries, and Grand Unification
• Proton decay, supersymmetry breaking and its mediation
• Metastable gauged O'Raifeartaigh
• Light third-generation squarks from flavour gauge messengers
• Supersymmetry breaking induced by radiative corrections
• Gauge Mediated SUSY Breaking via Seesaw
• Realization of a spontaneous gauge and supersymmetry breaking vacuum
• Unification of SUSY breaking and GUT breaking