Where does the hot electroweak phase transition end?

1998/09/15 by F. Csikor, Z. Fodor, Jochen Heitger +1
Physics and Astronomy · #Condensed matter physics #Cosmology and Gravitation Theories #Electroweak interaction #Particle physics #Phase (matter) #Phase transition #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Theoretical and Computational Physics #hep-lat #hep-ph

paper · pdf · doi:10.1016/s0920-5632(99)85166-4

published as Nucl.Phys.Proc.Suppl. 73 (1999) 659-661 · LATTICE98(electroweak), presented by Z. Fodor. Latex, 3 pages, 3 figu res. Comment line changed

arxiv created 1998/09/15 · openalex publication_date 1999/03/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We give the nonperturbative phase diagram of the four-dimensional hot electroweak phase transition. A systematic extrapolation a → 0 is done. Our results show that the finite temperature SU(2)-Higgs phase transition is of first order for Higgs-boson masses m_H<66.5 ± 1.4 GeV. The full four-dimensional result agrees completely with that of the dimensional reduction approximation. This fact is of particular importance, because it indicates that the fermionic sector of the Standard Model (SM) can be included perturbatively. We obtain that the Higgs-boson endpoint mass in the SM is 72.4 ± 1.7 GeV. Taking into account the LEP Higgs-boson mass lower bound excludes any electroweak phase transition in the SM.

Citations

• Critical Higgs mass and temperature dependence of gauge Boson masses in the SU(2) gauge-higgs model
• Numerical tests of the electroweak phase transition and thermodynamics of the electroweak plasma
• On anomalous electroweak baryon-number non-conservation in the early universe