The Generalized Dilaton Supersymmetry Breaking Scenario
arXiv:hep-th/9605180 · doi:10.1016/0370-2693(96)00821-0
Abstract
We show that the usual dilaton dominance scenario, derived from the tree level Kähler potential, can never correspond to a global minimum of the potential at . Similarly, it cannot correspond to a local minimum either, unless a really big conspiracy of different contributions to the superpotential takes place. These results, plus the fact that the Kähler potential is likely to receive sizeable string non-perturbative contributions, strongly suggest to consider a more general scenario, leaving the Kähler potential arbitrary. In this way we obtain generalized expressions for the soft breaking terms but a predictive scenario still arises. Finally, we explore the phenomenological capability of some theoretically motivated forms for non-perturbative Kähler potentials, showing that it is easy to stabilize the dilaton at the realistic value with just one condensate and no fine-tuning.
10 pages, plain LaTeX. Some references added and eq.(35) simplified
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