Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1993-12-27
Physics
High Energy Physics
High Energy Physics - Phenomenology
Iowa State University Preprint, IS-J 5268, December 1993, 10 Pages, (TeX file)
Scientific paper
Since the TRIVIALITY argument of the Higgs sector requires the existence of new physics beyond the standard model, there should exist a cutoff $\Lambda$ beyond which the standard model will breakdown. The cutoff can be determined from the position of the Landau pole. We study the effects of this cutoff on the energy of the electroweak sphaleron, $E^{spha}$, in the large Higgs boson mass limit. We found that $E^{spha}$ becomes arbitrarily large as the Higgs boson mass increases. This is in contrast to the well-known result, which is held in the standard model and a wide class of its extensions, that $E^{spha}$ is stable against the variation of the {\it bare} Higgs boson mass. The physical meaning of this result is discussed.
Young Bing--Lin
Zhang Xinmin
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