Calculation of two-loop top-quark and Higgs-boson corrections in the electroweak standard model

被引：17
|
作者：
Bauberger, S [1 ]
Weiglein, G [1 ]
机构：
[1] UNIV KARLSRUHE,INST THEORET PHYS,D-76128 KARLSRUHE,GERMANY
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1997年 / 389卷 / 1-2期
关键词：
D O I：
10.1016/S0168-9002(97)00116-2
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A combination of algebraical and numerical techniques for calculating two-loop top-quark and Higgs-boson corrections to electroweak precision observables like Delta r or the rho-parameter is presented. The renormalization is performed within the on-shell scheme. The results of the calculations are valid for arbitrary values of m(t), M-H and of the gauge-boson masses. An example is treated where the full result is compared to the result obtained via an expansion up to next-to-leading order in m(t). As an application, results for the Higgs-mass dependent top-contributions to Delta r are given.
引用
收藏
页码：318 / 322
页数：5
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