Energy barrier in the two-Higgs model

Abstract

The electroweak model is extended by a second Higgs doublet and a numerical investigation of static, finite energy classical solutions is performed. The results indicate that for a large domain of the parameters of the Higgs potential, the energy barrier between topologically distinct vacua of the Lagrangian is constituted by a bisphaleron.

Comments: 19 pages, including 4 eps figures, LaTex format, new results included