Two-loop renormalization of three-quark operators in QCD
High Energy Physics - Phenomenology
2011-09-16 v2
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.
Keywords
Cite
@article{arxiv.1107.3718,
title = {Two-loop renormalization of three-quark operators in QCD},
author = {S. Kraenkl and A. N. Manashov},
journal= {arXiv preprint arXiv:1107.3718},
year = {2011}
}
Comments
6 pages, 1 figure; published version, typos corrected