Gauge invariance in two-particle scattering

被引：35

作者：

Borasoy, B

Bruns, PC

Meissner, UG

Nissler, R

机构：

[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany

[2] Forschungszentrum Julich, Inst Kernphys Theorie, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW C | 2005年 / 72卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.72.065201

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

It is shown how gauge invariance is obtained for the coupling of a photon to a two-body state described by the solution of the Bethe-Salpeter equation. This is illustrated both for a complex scalar field theory and for interaction kernels derived from chiral effective Lagrangians.

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页数：8

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