A strong first order phase transition in the UMSSM
classification
✦ hep-ph
keywords
ewptfirstorderphasetransitionumssmbeenelectroweak
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In this work, the electroweak phase transition (EWPT) strength has been investigated within the $U(1)$ extended Minimal Supersymmetric Standard Model (UMSSM) without introducing any exotic fields. We found that the EWPT could be strongly first order for reasonable values of the lightest Higgs and neutralino masses.
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