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arxiv: hep-lat/9608087 · v1 · submitted 1996-08-15 · ✦ hep-lat

Critical Higgs Mass and Temperature Dependence of Gauge Boson Masses in the SU(2) Gauge-Higgs Model

F. Karsch , T. Neuhaus , A. Patk\'os , J. Rank This is my paper
classification ✦ hep-lat
keywords higgs-massbosoncriticalgaugegauge-higgsmassesmodeltemperature
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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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