학술논문
Four-loop verification of algorithm for Feynman diagrams summation in N=1 supersymmetric electrodynamics
Document Type
Working Paper
Author
Source
Theor.Math.Phys.147:687-697,2006; Teor.Mat.Fiz.147:290-302,2006
Subject
Language
Abstract
A method of Feynman diagrams summation, based on using Schwinger-Dyson equations and Ward identities, is verified by calculating some four-loop diagrams in N=1 supersymmetric electrodynamics, regularized by higher derivatives. In particular, for the considered diagrams correctness of an additional identity for Green functions, which is not reduced to the gauge Ward identity, is proved.
Comment: 14 pages, 9 figures
Comment: 14 pages, 9 figures