IMPLEMENTATION OF THE LEIBBRANDT-MANDELSTAM GAUGE PRESCRIPTION IN THE NULL-PLANE BOUND-STATE EQUATION

被引：15

作者：

LIU, HH

SOPER, DE

机构：

[1] Institute of Theoretical Science, University of Oregon, Eugene

来源：

PHYSICAL REVIEW D | 1993年 / 48卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.48.1841

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In gauge theories in a null-plane gauge, infinities can arise from the 1/n . q singularity in the gauge boson propagator. Leibbrandt and Mandelstam have given a prescription for defining this singularity so as to give finite results for the four-dimensional loop integrals in Feynman diagrams. However, this prescription is not directly applicable to calculations based on x+ ordered perturbation theory, and in particular to the the null-plane bound-state equation. We show how the prescription can be applied in the simplest version of this kind of calculation.

引用

页码：1841 / 1851

页数：11

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