COORDINATE SPACE METHODS FOR THE EVALUATION OF FEYNMAN DIAGRAMS IN LATTICE FIELD-THEORIES

被引：50

作者：

LUSCHER, M ^{[1
]}

WEISZ, P ^{[1
]}

机构：

[1] MAX PLANCK INST PHYS & ASTROPHYS, D-80805 MUNICH, GERMANY

来源：

NUCLEAR PHYSICS B | 1995年 / 445卷 / 2-3期

关键词：

D O I：

10.1016/0550-3213(95)00185-U

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We describe an efficient position space technique to calculate lattice Feynman integrals in infinite volume. The method applies to diagrams with massless propagators. For illustration a set of two-loop integrals is worked out explicitly. An important ingredient is an observation of Vohwinkel that the free lattice propagator can be evaluated recursively and is expressible as a linear function of its values near the origin.

引用

页码：429 / 450

页数：22