1994/03/30 by W. Buchmüller, W. Buchmuller, Z. Fodor +1 · 1 citation
Physics and Astronomy · #Electroweak interaction #Gauge (firearms) #Gauge boson #Gauge theory #Higgs boson #High-Energy Particle Collisions Research #Invariant (physics) #Jump #Particle physics theoretical and experimental studies #Phase transition #Quantum Chromodynamics and Particle Interactions #U-1 #hep-ph
paper · pdf · doi:10.1016/0370-2693(94)90953-9
published as Phys.Lett.B331:131-136,1994 · 8 pages latex, DESY-94-043, 4 figures can be obtained via e-mail from [email protected]
arxiv created 1994/03/30 · openalex publication_date 1994/06/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We evaluate the gauge invariant effective potential for the composite field σ=2Φ†Φ in the SU(2)-Higgs model at finite temperature. Symmetric and broken phases correspond to the domains σ≤ T2/3 and σ> T2/3, respectively. The effective potential increases very steeply at small values of σ. Predictions for several observables, derived from the ordinary and the gauge invariant effective potential, are compared. Good agreement is found for the critical temperature and the jump in the order parameter. The results for the latent heat differ significantly for large Higgs masses.