Critical Higgs mass and temperature dependence of gauge Boson masses in the SU(2) gauge-higgs model

1996/08/15 by F. Karsch, T. Neuhaus, A. Patkós +1 · 4 citations
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Theoretical and Computational Physics #hep-lat

paper · pdf · doi:10.1016/s0920-5632(96)00736-0

published as Nucl.Phys.Proc.Suppl. 53 (1997) 623-625 · Talk presented at LATTICE96(electroweak), 3 pages, LaTeX2e File, Style File, 4 eps figures included

arxiv created 1996/08/15 · openalex publication_date 1997/02/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We study the effective 3-D SU(2) Gauge-Higgs model at finite temperature for Higgs-masses in the range from 60 GeV up to 100 GeV. The first order electroweak phase transition weakens with increasing Higgs-mass and terminates at a critical end-point. For Higgs-mass values larger than about m_H,c=75.4(6) GeV the thermodynamic signature of the transition is described by a crossover. Close to this Higgs-mass value we investigate the vector boson propagator in Landau gauge. The calculated W-boson screening masses are compared with predictions based on gap equations.

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