SUSY Variants of the Electroweak Phase Transition

Details SUSY Variants of the Electroweak Phase Transition SUSY Variants of the Electroweak Phase Transition

1998-09-23

arxiv.org/abs/hep-ph/9809506v2

Eur.Phys.J.C10:473-481,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

18pp., Latex, 12 figures, references added, some typos corrected

Scientific paper

10.1007/s100529900135

The MSSM with a light right-handed stop and supersymmetric models with a singlet whose vev is comparable to that of the SU(2)_W 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.

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