Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-07-04
Phys.Lett. B412 (1997) 69-76
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages. LaTex + RevTex
Scientific paper
10.1016/S0370-2693(97)01042-3
Gravitational divergences associated with singlet fields in supersymmetric theories are reexamined, and their possible contributions to the low-energy effective theory are pointed out. We demonstrate that such divergences are not necessarily harmful and that Planck-scale physics could play an important role in models of low-energy supersymmetry breaking via a radiatively induced tadpole term in the scalar potential. In this case, gravitational divergences play the role of the supersymmetry breaking mediator, leading to a simple realization of the so-called messenger model. We also point out a new mechanism for the generation of mass terms for the Higgs fields in models of low-energy supersymmetry breaking, as well as a horizontal messenger mechanism in which the horizontally charged scalars are rendered heavy. Implications to the flavor problem in supersymmetric models are also discussed.
Nilles Hans Peter
Polonsky Nir
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