Moduli-mixing racetrack model

Details Moduli-mixing racetrack model Moduli-mixing racetrack model

2005-12-19

arxiv.org/abs/hep-th/0512232v1

Nucl.Phys.B742:187-207,2006

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 4 eps figures

Scientific paper

10.1016/j.nuclphysb.2006.02.034

We study supersymmetric models with double gaugino condensations in the hidden sector, where the gauge couplings depend on two light moduli of superstring theory. We perform a detailed analysis of this class of model and show that there is no stable supersymmetric minimum with finite vacuum values of moduli fields. Instead, we find that the supersymmetry breaking occurs with moduli stabilized and negative vacuum energy. That yields moduli-dominated soft supersymmetry breaking terms. To realize slightly positive (or vanishing) vacuum energy, we add uplifting potential. We discuss uplifting does not change qualitatively the vacuum expectation values of moduli and the above feature of supersymmetry breaking.

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