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题名: A Proof of Factorization Theorem of Drell Yan Process at Operator Level
作者: Zhou, GL
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2016
卷号: 65, 期号:2, 页码:193-203
关键词: QCD factorization ;  Drell Yan process
学科分类: Physics
通讯作者: Zhou, GL (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
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.
类目[WOS]: Physics, Multidisciplinary
关键词[WOS]: HADRON-HADRON SCATTERING ;  VACUUM POLARIZATION DIAGRAMS ;  LEPTON-PAIR PRODUCTION ;  HARD QCD PROCESSES ;  CROSS-SECTION ;  PERTURBATION-THEORY ;  MASS SINGULARITIES ;  ANNIHILATION PROCESSES ;  INELASTIC-SCATTERING ;  PARTON DISTRIBUTION
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11275242]
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21781
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Zhou, GL. A Proof of Factorization Theorem of Drell Yan Process at Operator Level[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2016,65(2):193-203.
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