Electroweak Phase Transitions in left-right symmetric models

Abstract

We study the finite-temperature effective potential of minimal left-right symmetric models containing a bidoublet and two triplets in the scalar sector. We perform a numerical analysis of the parameter space compatible with the requirement that baryon asymmetry is not washed out by sphaleron processes after the electroweak phase transition. We find that the spectrum of scalar particles for these acceptable cases is consistent with present experimental bounds.

Comments: 20 pages, 5 figures (included), some comments added, typos corrected and new references included. Final version to appear in PRD