The effective potential at finite temperature in the left-right symmetric model

Details The effective potential at finite temperature in the left-right symmetric model The effective potential at finite temperature in the left-right symmetric model

1992-10-09

arxiv.org/abs/hep-ph/9210223v1

Phys.Rev.D48:1258-1265,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 A4pages + 2 figures not included but available (by ordinary mail) upon request, plain Latex, UM-P-92/88

Scientific paper

10.1103/PhysRevD.48.1258

We obtain the effective potential at finite temperature within the left-right symmetric model. We take the Higgs sector to consist of two doublets and calculate its finite temperature effective potential up to the order of ``ring-diagrams'', using analogous techniques to those employed in the derivation of the effective potential in the Standard Model. We find that two first order phase transitions can exist, one at the $SU(2)_R$ breaking scale, the other at the usual $SU(2)_L\otimes U(1)_Y$ breaking scale. Even though more parameters are present than the standard model, we find that the electroweak phase transition is still too weak to allow baryon asymmetry to survive the transition, if the lower bound of the Higgs boson mass from experiment is adhered to.

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