期刊
PHYSICS LETTERS B
卷 703, 期 4, 页码 519-523出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2011.08.028
关键词
-
资金
- DFG [9209506]
- RFFI [09-01-93108]
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.
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