Preheating and vacuum metastability in Supersymmetry
arXiv:hep-ph/9607403 · doi:10.1016/S0370-2693(96)01380-9
Abstract
The constraints imposed by the requirement that the scalar potential of supersymmetric theories does not have unbounded directions and charge or color breaking minima deeper than the usual electroweak breaking minimum (EWM) are significantly relaxed if one just allows for a metastable EWM but with a sufficiently long lifetime. For this to be acceptable one needs however to explain how the vacuum state reaches this metastable configuration in the first place. We discuss the implications for this issue of the inflaton induced scalar masses, of the supersymmetry breaking effects generated during the preheating stage as well as of the thermal corrections to the scalar potential which appear after reheating. We show that their combined effects may efficiently drive the scalar fields to the origin, allowing them to then evolve naturally towards the EWM.
13 pages, LaTeX file
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- SUSY breaking by a metastable ground state: Why the early Universe preferred the non-supersymmetric vacuum
- Charge and Colour Breaking in the Constrained MSSM
- Is Natural SUSY Natural?
- Quintessence and the Underlying Particle Physics Theory
- Baryon number non-conservation and phase transitions at preheating
- Retrofitted Natural Supersymmetry from a U(1)
- Constraints on Supersymmetric SO(10) GUTs with Sum Rules among Soft Masses
- Gravitino Dark Matter in Gravity Mediation