End point of the hot electroweak phase transition

被引：293

作者：

Csikor, F

Fodor, Z ^{[1
]}

Heitger, J

机构：

[1] Eotvos Lorand Univ, Inst Theoret Phys, H-1088 Budapest, Hungary

[2] KEK, Tsukuba, Ibaraki 305, Japan

[3] Univ Munster, Inst Theoret Phys 1, D-48149 Munster, Germany

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.82.21

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 +/- 1.4 GeV. 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 +/- 1.7 GeV. Thus, the LEP Higgs-boson mass lower bound excludes any electroweak phase [S0031-9007(98)08047-8].

引用

页码：21 / 24

页数：4

共 22 条

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