The regional strategy in the asymptotic expansion of two-loop vertex feynman diagrams

被引：59

作者：

Smirnov, VA ^{[1
]}

Rakhmetov, ER ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Skobeltsin Inst Nucl Phys, Moscow, Russia

来源：

THEORETICAL AND MATHEMATICAL PHYSICS | 1999年 / 120卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1007/BF02557396

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

General prescriptions for evaluating coefficients at arbitrary powers and logarithms in the asymptotic expansion of Feynman diagrams in the Sudakov limit are discussed and illustrated with two-loop examples. Peculiarities connected with the evaluation of individual terms in the expansion, in particular, the introduction of an auxiliary analytic regularization, are characterized.

引用

页码：870 / 875

页数：6

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