Recurrence relations for three-loop prototypes of bubble diagrams with a mass

被引:65
作者
Avdeev, LV
机构
[1] Bogoliubov Lab. of Theor. Physics, Joint Institute for Nuclear Research, Dubna
关键词
recurrence relations; massive Feynmann integrals; analytical evaluation of 3-loop radiative corrections; FEYNMAN DIAGRAMS; RHO-PARAMETER; RENORMALIZATION; INTEGRATION;
D O I
10.1016/0010-4655(96)00090-2
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Recurrence relations derived via the Chetyrkin-Tkachov method of integration by parts are applied to reduce scalar three-loop bubble (vacuum) diagrams with a mass to a limited number of master integrals. The reduction is implemented as a package of computer programs for analytic evaluation in FORM. The algorithms are applicable to diagrams with any integer powers on the lines in an arbitrary dimension. A physical application is the evaluation of the three-loop QCD correction to the electroweak rho parameter.
引用
收藏
页码:15 / 19
页数:5
相关论文
共 13 条