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arXiv 1107.3718hep-ph
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QCD中三夸克算符的双圈重整化

Two-loop renormalization of three-quark operators in QCD

S. Kraenkl, A. N. Manashov

摘要:

复合三夸克算符在维正则化中的重正化由于物理和非物理(倏逝)算符的混合而变得复杂。在一致的减法方案中必须考虑这种混合。在这项工作中,我们提出了一个特殊的计划,允许一个,以避免额外的有限重整化的必要性,是方便的QCD应用。作为例子,我们计算了定域三夸克算符的双圈反常维数。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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