Higgs-mass dependence of two-loop corrections to Δr

被引：23

作者：

Bauberger, S

Weiglein, G

机构：

[1] Univ Wurzburg, Inst Theoret Phys, D-97074 Wurzburg, Germany

[2] Univ Karlsruhe, Inst Theoret Phys, D-76128 Karlsruhe, Germany

来源：

PHYSICS LETTERS B | 1998年 / 419卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(97)01458-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Higgs-mass dependence of the Standard Model contributions to the correlation between the gauge-boson masses is studied at the two-loop level. Exact results are given for the Higgs-dependent two-loop corrections associated with the fermions, i.e. no expansion in the top-quark and the Higgs-boson mass is made. The results for the top quark are compared with results of an expansion up to next-to-leading order in the top-quark mass. Agreement is found within 30% of the two-loop result. The remaining theoretical uncertainties in the Higgs-mass dependence of Delta r are discussed. (C) 1998 Elsevier Science B.V.

引用

页码：333 / 339

页数：7

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