A Proof of Factorization Theorem of Drell Yan Process at Operator Level

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	A Proof of Factorization Theorem of Drell Yan Process at Operator Level
	Zhou, GL
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2016
卷号	65 期号:2 页码:193-203
关键词	QCD factorization HADRON-HADRON SCATTERING Drell Yan process VACUUM POLARIZATION DIAGRAMS LEPTON-PAIR PRODUCTION HARD QCD PROCESSES CROSS-SECTION PERTURBATION-THEORY MASS SINGULARITIES ANNIHILATION PROCESSES INELASTIC-SCATTERING PARTON DISTRIBUTION
英文摘要	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.
学科主题	Physics
语种	英语
资助机构	National Natural Science Foundation of China [11275242]
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23026]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou, GL. A Proof of Factorization Theorem of Drell Yan Process at Operator Level[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2016,65(2):193-203.
APA	Zhou, GL.(2016).A Proof of Factorization Theorem of Drell Yan Process at Operator Level.COMMUNICATIONS IN THEORETICAL PHYSICS,65(2),193-203.
MLA	Zhou, GL."A Proof of Factorization Theorem of Drell Yan Process at Operator Level".COMMUNICATIONS IN THEORETICAL PHYSICS 65.2(2016):193-203.