Electroweak sphaleron for effective theory in the limit of large Higgs boson mass

Journal Article · Mon May 01 00:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.51.5327· OSTI ID:44798

Zhang, X; Young, B; Lee, S K ^[1]

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1. Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)

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 find that in the presence of a certain class of higher dimension operators the sphaleron energy becomes arbitrarily large as the Higgs boson mass {ital m}{sub {ital H}} increases. The physical meaning of this result and its implications to electroweak baryogenesis in the dynamical symmetry-breaking models are discussed.

• DOE Contract Number: FG02-94ER40817
• OSTI ID: 44798
• Journal Information: Physical Review, D, Vol. 51, Issue 9; Other Information: PBD: 1 May 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
STANDARD MODEL
HIGGS BOSONS
LAGRANGIAN FUNCTION
MASS
ENERGY
SYMMETRY BREAKING