QCD One-Loop Effective Coupling Constant and Quark Mass Given in a Mass-Dependent Renormalization

QCD One-Loop Effective Coupling Constant and Quark Mass Given in a Mass-Dependent Renormalization

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摘要 The QCD one-loop renormalization is restudied in a mass-dependent subtraction scheme in which the quark mass is not set to vanish and the renormalization point is chosen to be an arbitrary time-like momentum. The correctness of the subtraction is ensured by the Ward identities which are respected in all the processes of subtraction.By considering the mass effect, the effective coupling constant and the effective quark masses derived by solving the renormalization group equations are given in improved expressions which are different from the previous results.PACS numbers: 11.10.Gh, 11.10.Hi, 12.38.-t, 12.38.

作者 SU Jun-Chen SHAN Lian-You CAO Ying-Hui

机构地区 Center for Theoretical Physics

出处《Communications in Theoretical Physics》 SCIE CAS CSCD 2001年第12期665-672,共8页 理论物理通讯（英文版）

基金国家自然科学基金，高等学校博士学科点专项科研项目

分类号 O4 [理学—物理]

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Communications in Theoretical Physics

2001年第12期

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QCD One-Loop Effective Coupling Constant and Quark Mass Given in a Mass-Dependent Renormalization

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