期刊
NUCLEAR PHYSICS B
卷 658, 期 1-2, 页码 49-112出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0550-3213(03)00177-9
关键词
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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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