SUSY variants of the electroweak phase transition

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 sit...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 1999-10, Vol.10 (3), p.473-481
Main Authors: Huber, S.J., Schmidt, M.G.
Format: Article
Language:English
Subjects:
Phase transitions
Supersymmetry
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Summary: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.
ISSN:1434-6044
1434-6052
DOI:10.1007/s100529900135