Two Stage Phase Transition in Two Higgs Models

Details Two Stage Phase Transition in Two Higgs Models Two Stage Phase Transition in Two Higgs Models

1992-08-14

arxiv.org/abs/hep-ph/9208227v1

Phys.Lett.B292:107-112,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages plus one figure appended as postscript file, HUTP-92/A026

Scientific paper

10.1016/0370-2693(92)90616-C

We present a mechanism in which models with two Higgs fields can undergo a two stage phase transition as the temperature falls. The first stage is a conventional second order (or weakly first order) transition in which the symmetry is broken. Shortly thereafter follows a first order transition with barrier penetration, bubble production and loss of thermal equilibrium. For Higgs potentials with CP violation, we show that the second stage of the transition has all the features required for weak scale baryogenesis.

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