A GENERAL-METHOD FOR CALCULATING PRINCIPAL VALUE INTEGRALS NUMERICALLY IN AN N-DIMENSIONAL REGION

被引：8

作者：

CHANG, CH ^{[1
]}

WANG, JX ^{[1
]}

机构：

[1] ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA

来源：

COMPUTER PHYSICS COMMUNICATIONS | 1992年 / 69卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0010-4655(92)90171-T

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Based on the antithetic cancellation technique, we propose a numerical method to calculate the N-dimensional principal value integrals. This method is powerful for numerically evaluating a multi-dimensional Feynman parameter integral with the singularity which occurs in loop calculations of quantum field theories, when some internal lines of the related Feynman diagrams are allowed by kinematics to approach to the corresponding mass shells.

引用

页码：330 / 338

页数：9