(MS)over-bar vs. pole masses of gauge bosons - II: two-loop electroweak fermion corrections

被引：112
作者：
Jegerlehner, F
Kalmykov, MY
Veretin, O
机构：
[1] DESY Zeuthen, D-15738 Zeuthen, Germany
[2] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany
来源：
NUCLEAR PHYSICS B | 2003年 / 658卷 / 1-2期
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1016/S0550-3213(03)00177-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We have calculated the fermion contributions to the shift of the position of the poles of the massive gauge boson propagators at two-loop order in the Standard Model. Together with the bosonic contributions calculated previously the full two-loop corrections are available. This allows us to investigate the full correction in the relationship between (M) over bar(S) over bar and pole masses of the vector bosons Z and W. Two-loop renormalization and the corresponding renormalization group equations are discussed. Analytical results for the master-integrals appearing in the massless fermion contributions are given. A new approach of summing multiple binomial sums has been developed. (C) 2603 Elsevier Science B.V. All rights reserved.
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页码：49 / 112
页数：64
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