Authors: ChengWei Chiang Eibun Senaha
Publish Date: 2010/06/07
Volume: 2010, Issue: 6, Pages: 30-
Abstract
The electroweak phase transition EWPT in the secludedU1′extended MSSM sMSSM is studied Using the effective potential at zero and finite temperatures we search for the nonMSSMlike EWPT in which the light stop mass is larger than the top quark mass Scanning the parameters relevant to the EWPT the upper limits of the Higgs boson masses which are consistent with the strong first order EWPT are derived For the lightest CPeven and odd Higgs bosons we find m H 1 lesssim 160text GeV and m A 1 lesssim 250text GeV respectively In the sMSSM the treelevel CP violation is possible by the complex soft supersymmetry breaking masses It is observed that such a CPviolating effect does not spoil the strong first order EWPT for the typical parameter sets
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