Two-loop renormalization of three-quark operators in QCD

Kraenkl, Susanne and Manashov, Alexander (2011) Two-loop renormalization of three-quark operators in QCD. PHYSICS LETTERS B, 703 (4). pp. 519-523. ISSN 0370-2693,

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Abstract

Renormalization of composite three-quark operators in dimensional regularization is complicated by the mixing of physical and unphysical (evanescent) operators. This mixing must be taken into account in a consistent subtraction scheme. In this work we propose a particular scheme that allows one to avoid the necessity of additional finite renormalization and is convenient in QCD applications. As an illustration, we calculate the two-loop anomalous dimensions of local three-quark operators in this scheme. (C) 2011 Elsevier By. All rights reserved.

Item Type: Article
Uncontrolled Keywords: DISTRIBUTION AMPLITUDES; QUANTUM CHROMODYNAMICS; EVANESCENT OPERATORS; SUM-RULES; NUCLEON; APPROXIMATION; INTEGRABILITY; GAUGE;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Braun
Depositing User: Dr. Gernot Deinzer
Date Deposited: 29 May 2020 12:05
Last Modified: 29 May 2020 12:05
URI: https://pred.uni-regensburg.de/id/eprint/20165

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