Bibcode
Espinosa, J. R.
Referencia bibliográfica
eprint arXiv:hep-ph/9706389
Fecha de publicación:
6
1997
Número de citas
0
Número de citas referidas
0
Descripción
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.