Two-loop anomalous dimension of N=1 supersymmetric quantum electrodynamics regularized using higher covariant derivatives

被引：20
|
作者：
Soloshenko, AA [1 ]
Stepanyantz, KV [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow, Russia
来源：
THEORETICAL AND MATHEMATICAL PHYSICS | 2003年 / 134卷 / 03期
关键词：
regularization; higher covariant derivatives; counterterms;
D O I：
10.1023/A:1022653506397
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We calculate the two-loop anomalous dimension in the N=1 supersymmetric electrodynamics regularized through the higher covariant derivative method using the minimum subtraction scheme and show that the result is independent of the form of the regularizing term but does depend on the ratio between the masses M of the Pauli-Villars fields and the dimensional constant A in the regularizing term. We propose a simple subtraction scheme in which the result is independent of the parameters of the regularization used.
引用
收藏
页码：377 / 391
页数：15
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