Electroweak Sphaleron For Effective Theory In The Limit Of Large Higgs Boson Mass
Xinmin Zhang, B. -L. Young, S. K. Lee
Abstract
Theoretical arguments suggest that the Higgs sector of the standard model is an effective theory. We parametrize the new physics by means of an effective Lagrangian technique and study its effect on the energy of the electroweak sphaleron. We found that in the presence of a certain class of higher dimension operators the sphaleron energy becomes arbitrarily large as the Higgs boson mass increases. The physical meaning of this result and its implications to the electroweak baryogenesis in the dynamical models are discussed.
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