Perturbative Analysis of the MSSM Electroweak Phase Transition

Bibcode
1997hep.ph....6389E
Espinosa, J. R.
Bibliographical reference

eprint arXiv:hep-ph/9706389

Advertised on:
6
1997
Number of authors
1
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Light stops can give a strong first order electroweak phase transition in the Minimal Supersymmetric Standard Model (MSSM) satisfying one of the necessary conditions for electroweak baryogenesis. I discuss the region of parameter space where this occurs using a perturbative analysis of the Higgs effective potential. Two-loop QCD corrections associated with stop loops are crucial to open this baryogenesis window, which corresponds to 2.25 < tan beta < 3.6, one stop not much heavier than the top quark, m_A > 120 GeV and a light Higgs boson with m_h < 85 GeV. This region will be explored by LEP II very soon.
Type
Non-refereed

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