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QCD factorization Drell–Yan process

QCD factorization Drell–Yan process
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摘要 An alternative proof of factorization theorem for Drell–Yan process that works at operator level is presented in this paper. Contributions of interactions after the hard collision for such inclusive processes are proved to be canceled at operator level according to the unitarity of time evolution operator. After this cancellation, there are no longer leading pinch singular surface in Glauber region in the time evolution of electromagnetic currents. Effects of soft gluons are absorbed into Wilson lines of scalar-polarized gluons. Cancelation of soft gluons is attribute to unitarity of time evolution operator and such Wilson lines.
作者 周高亮
出处 《Communications in Theoretical Physics》 SCIE CAS CSCD 2016年第2期193-203,共11页 理论物理通讯(英文版)
基金 Supported by the National Natural Science Foundation of China under Grant No.11275242
关键词 A Proof of Factorization Theorem of Drell–Yan Process at Operator Level 核Drell-Yan过程 QCD因子化 时间演化算符 运营商级 分解定理 相互作用 威尔逊 幺正性
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