Implications of N=1 supersymmetry for QCD conformal operators

被引：26

作者：

Belitsky, AV ^{[1
]}

Müller, D ^{[1
]}

Schäfer, A ^{[1
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

来源：

PHYSICS LETTERS B | 1999年 / 450卷 / 1-3期

关键词：

superconformal algebra; Ward identities; dimensional reduction; anomalous dimensions; conformal operators;

D O I：

10.1016/S0370-2693(99)00146-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We prove a set of identities for the anomalous dimensions of the quark and gluon conformal operators in the flavour singlet channel in QCD. These relations arise from the graded commutator algebra of the N = 1 superconformal group. We evaluate the rotation matrices for the quantities under study from the conventional dimensional regularization to the supersymmetry preserving regularization scheme. Using them we verify the equalities in two-loop;approximation employing the results for the NLO anomalous dimensions of the conformal operators in the minimal subtraction scheme derived earlier. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：126 / 135

页数：10

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