Derivation of the exact NSVZ β-function in N=1 SQED, regularized by higher derivatives, by direct summation of Feynman diagrams

被引：59

作者：

Stepanyantz, K. V. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Dept Theoret Phys, Moscow 119991, Russia

来源：

NUCLEAR PHYSICS B | 2011年 / 852卷 / 01期

关键词：

Higher derivative regularization; ss-Function; Supersymmetry; YANG-MILLS THEORIES; MANN-LOW FUNCTION; SUPERSYMMETRIC GAUGE-THEORIES; INVARIANT REGULARIZATION; CHARGE RENORMALIZATION; ANOMALY PUZZLE; FINITENESS; BEHAVIOR; ORDER;

D O I：

10.1016/j.nuclphysb.2011.06.018

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：

For N = 1 supersymmetric quantum electrodynamics, regularized by higher derivatives, a method for summation of all Feynman diagrams defining the beta-function is presented. Using this method we prove that the beta-function is given by an integral of a total derivative, which can be easily calculated. It is shown that surviving terms give the exact NSVZ beta-function. The results are compared with the explicit three-loop calculation. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：71 / 107

页数：37

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