Gaugino Mediated Supersymmetry Breaking

Details Gaugino Mediated Supersymmetry Breaking Gaugino Mediated Supersymmetry Breaking

1999-11-11

arxiv.org/abs/hep-ph/9911323v3

JHEP 0001 (2000) 003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Refs. added. 12 pages, 1 figure

Scientific paper

10.1088/1126-6708/2000/01/003

We consider supersymmetric theories where the standard-model quark and lepton fields are localized on a "3-brane" in extra dimensions, while the gauge and Higgs fields propagate in the bulk. If supersymmetry is broken on another 3-brane, supersymmetry breaking is communicated to gauge and Higgs fields by direct higher-dimension interactions, and to quark and lepton fields via standard-model loops. We show that this gives rise to a realistic and predictive model for supersymmetry breaking. The size of the extra dimensions is required to be of order 10-100 times larger than fundamental scale (e.g. the string scale). The spectrum is similar to (but distinguishable from) the predictions of "no-scale" models. Flavor-changing neutral currents are naturally suppressed. The \mu term can be generated by the Giudice-Masiero mechanism. The supersymmetric CP problem is naturally solved if CP violation occurs only on the observable sector 3-brane. These are the simplest models in the literature that solve all supersymmetric naturalness problems.

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