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The Effective Potential of Electroweak Theory with Two Massless Higgs Doublets at Finite Temperature

The Effective Potential of Electroweak Theory with Two Massless Higgs Doublets at Finite Temperature

The effective potential of electroweak theory with two massless Higgs doublets at finite temperature is studied. We investigate phase structure and critical temperature in this model by numerical analysis without high-temperature expansion. The phase transition is found to be of first order. The critical temperature is shown to be relatively …