Problems for Supersymmetry Breaking by the Dilaton in Strings from Charge and Color Breaking

Details Problems for Supersymmetry Breaking by the Dilaton in Strings from Charge and Color Breaking Problems for Supersymmetry Breaking by the Dilaton in Strings from Charge and Color Breaking

1996-01-29

arxiv.org/abs/hep-ph/9601357v3

Phys.Lett. B380 (1996) 59-67

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages LaTex + 3 figures including psfig.tex. (No changes to the paper, only some references added)

Scientific paper

10.1016/0370-2693(96)00489-3

The general constraints on the parameter space of soft-breaking terms, in order to avoid dangerous charge and color breaking minima, are applied to the four-dimensional string scenario where the dilaton is the source of supersymmetry breaking (dilaton-dominated limit). The results indicate that the whole parameter space is excluded on these grounds after imposing the present experimental data on the top mass. The inclusion of a non-vanishing cosmological constant does not improve essentially the prospects. Possible way-outs to this situation are briefly discussed.

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