Level Crossing Along Sphaleron Barriers

Details Level Crossing Along Sphaleron Barriers Level Crossing Along Sphaleron Barriers

1994-03-03

arxiv.org/abs/hep-ph/9403216v1

Phys.Rev. D50 (1994) 1051-1059

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, latex, 10 figures in uuencoded postscript files. THU-94/03

Scientific paper

10.1103/PhysRevD.50.1051

In the electroweak sector of the standard model topologically inequivalent vacua are separated by finite energy barriers, whose height is given by the sphale\-ron. For large values of the Higgs mass there exist several sphaleron solutions and the barriers are no longer symmetric. We construct paths of classical configurations from one vacuum to a neighbouring one and solve the fermion equations in the background field configurations along such paths, choosing the fermions of a doublet degenerate in mass. As in the case of light Higgs masses we observe the level crossing phenomenon also for large Higgs masses.

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