Threshold behavior of Feynman diagrams: The master two-loop propagator

被引：42

作者：

Czarnecki, A ^{[1
]}

Smirnov, VA ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,INST NUCL PHYS,MOSCOW 119899,RUSSIA

来源：

PHYSICS LETTERS B | 1997年 / 394卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/S0370-2693(96)01698-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An asymptotic expansion of the two-loop two-point ''master'' diagram with two masses m and M, on the mass shell Q(2) = M(2), is presented, The treatment of the non-analytical terms arising in the expansion around the branching point is discussed. Some details of the calculation of a new class of two-loop integrals are given.

引用

页码：211 / 217

页数：7