Where the electroweak phase transition ends

Journal Article · Wed Oct 01 00:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.3888· OSTI ID:542744

Guertler, M ^[1]; Ilgenfritz, E ^[2]; Schiller, A ^[1]

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1. Institut fuer Theoretische Physik, Universitaet Leipzig (Germany)
2. Institut fuer Physik, Humboldt-Universitaet zu Berlin (Germany)

We give a more precise characterization of the end of the electroweak phase transition in the framework of the effective three-dimensional SU(2)-Higgs lattice model than has been given before. The model has now been simulated at gauge couplings {beta}{sub G}=12 and 16 for Higgs boson masses M{sub H}{sup *}=70, 74, 76, and 80 GeV up to lattices 96{sup 3} and the data have been used for reweighting. The breakdown of finite volume scaling of the Lee-Yang zeroes indicates the change from a first order transition to a crossover at {lambda}{sub 3}/g{sub 3}{sup 2}=0.102(2) in rough agreement with results of Karsch, Neuhaus, Patk{acute o}s, and Rank at {beta}{sub G}=9 and smaller lattices. The infinite volume extrapolation of the discontinuity {Delta}{l_angle}{phi}{sup +}{phi}{r_angle}/g{sub 3}{sup 2} turns out to be zero at {lambda}{sub 3}/g{sub 3}{sup 2}=0.107(2) being an upper limit. We comment on the limitations of the second method. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 542744
• Journal Information: Physical Review, D, Vol. 56, Issue 7; Other Information: PBD: Oct 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGGS MODEL
PHASE TRANSFORMATIONS
SU-2 GROUPS
LATTICE FIELD THEORY
COUPLING
HIGGS BOSONS
MASS
SCALING