SUSY variants of the electroweak phase transition |
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Authors: | SJ Huber MG Schmidt |
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Institution: | Institut für Theoretische Physik, Universit?t Heidelberg, Philosophenweg 16, D-69120 Heidelberg, Germany, DE
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Abstract: | The MSSM with a light right-handed stop and supersymmetric models with a singlet whose vev is comparable to that of the Higgs allow for a strongly first-order electroweak phase transition even for a mass of the lightest Higgs around 100 GeV.
After a short review of the standard model situation we discuss these supersymmetric models. We also compare perturbative
calculations based on the dimensionally reduced 3-dimensional action with lattice results and present an analytic procedure
based on an analogue of the stochastic vacuum model of QCD to estimate the nonperturbative contributions.
Received: 26 September 1998 / Revised version: 2 June 1999 / Published online: 15 July 1999 |
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