Supersymmetry Breaking with Vanishing F-terms in Supergravity Theories

Details Supersymmetry Breaking with Vanishing F-terms in Supergravity Theories Supersymmetry Breaking with Vanishing F-terms in Supergravity Theories

1997-06-20

arxiv.org/abs/hep-ph/9706429v1

Phys.Lett. B410 (1997) 160-166

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, Latex

Scientific paper

10.1016/S0370-2693(97)00979-9

In conventional supergravity theories, supersymmetry is broken by a non-zero F-term, and the cosmological constant is fine tuned to zero by a constant in the superpotential W. We discuss a class of supergravity theories with vanishing F-terms but $W \not= 0$ being generated dynamically. The cosmological constant is assumed to be cancelled by a non-zero D-term. In this scenario the gravity-mediated soft masses depend only on a single parameter, the gravitino mass. They are automatically universal, independently of the Kahler metric, and real. Thus, dangerous flavor or CP violating interactions are suppressed. Unlike in conventional supergravity models, the Polonyi problem does not arise.

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