End point of the hot electroweak phase transition

F. Csikor; Z. Fodor; J. Heitger

doi:10.1103/PhysRevLett.82.21

End point of the hot electroweak phase transition

F. Csikor, Z. Fodor, J. Heitger

Physics

Research output: Contribution to journal › Article › peer-review

300 Scopus citations

Abstract

We study the hot electroweak phase transition by four-dimensional lattice simulations and give the phase diagram. A continuum extrapolation is done. We find that the phase transition is first order for Higgs-boson masses m_H<66.5±1.4GeV. Above this end point a rapid crossover occurs. Our result agrees with that of the dimensional reduction approach. It also indicates that the fermionic sector of the standard model (SM) may be included perturbatively. We obtain that the end point in the SM is 72.4±1.7GeV. Thus, the LEP Higgs-boson mass lower bound excludes any electroweak phase transition in the SM.

Original language	English (US)
Pages (from-to)	21-24
Number of pages	4
Journal	Physical review letters
Volume	82
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.82.21
State	Published - 1999

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.82.21

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AU - Csikor, F.

AU - Fodor, Z.

AU - Heitger, J.

PY - 1999

Y1 - 1999

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AB - We study the hot electroweak phase transition by four-dimensional lattice simulations and give the phase diagram. A continuum extrapolation is done. We find that the phase transition is first order for Higgs-boson masses mH<66.5±1.4GeV. Above this end point a rapid crossover occurs. Our result agrees with that of the dimensional reduction approach. It also indicates that the fermionic sector of the standard model (SM) may be included perturbatively. We obtain that the end point in the SM is 72.4±1.7GeV. Thus, the LEP Higgs-boson mass lower bound excludes any electroweak phase transition in the SM.

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JO - Physical review letters

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End point of the hot electroweak phase transition

Abstract

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