Coupled gap equations for the screening masses in the SU(2) Higgs model

Details Coupled gap equations for the screening masses in the SU(2) Higgs model Coupled gap equations for the screening masses in the SU(2) Higgs model

1999-05-07

arxiv.org/abs/hep-ph/9905269v2

Eur.Phys.J.C12:173-180,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, Latex, 7 eps figures included, uses epsf.sty, minor corrections, conclusions unchanged

Scientific paper

10.1007/s100529900221

The complete set of static screening masses is determined for the SU(2) Higgs model from one-loop coupled gap equations. Results from the version, containing scalar fields both in the fundamental and adjoint representations are compared with the model arising when the integration over the adjoint scalar field is performed. A non-perturbative and non-linear mapping between the couplings of the two models is proposed, which exhibits perfect decoupling of the heavy adjoint scalar field. Also the alternative of a gauge invariant mass resummation is investigated in the high temperature phase.

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