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题名: One-loop corrections to single spin asymmetries at twist-3 in Drell-Yan processes
作者: Chen, AP ;  Ma, JP ;  Zhang, GP
刊名: PHYSICAL REVIEW D
出版日期: 2017
卷号: 95, 期号:7, 页码:74005
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.95.074005
通讯作者: Chen, AP (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China. ;  Chen, AP (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.
文章类型: Article
英文摘要: We study single spin asymmetries at one-loop accuracy in Drell-Yan processes in which one of the initial hadrons is transversely polarized. The spin-dependent part of differential cross sections can be factorized with various hadronic matrix elements of twist-2 and twist-3 operators. These operators can be of even and odd chirality. In this work, the studied observables of asymmetries are differential cross sections with different weights. These weights are selected so that the observables are spin dependent and their virtual corrections are completely determined by the quark form factor. In the calculations of one-loop corrections we meet collinear divergences in the contributions involving chirality-odd and chirality-even operators. We find that all of the divergences can be correctly subtracted. Therefore, our results give an explicit example of QCD factorization at one loop with twist-3 operators, especially QCD factorization with chirality-odd twist-3 operators.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: DEEP-INELASTIC SCATTERING ;  ODD PARTON DISTRIBUTIONS ;  DIRECT PHOTON PRODUCTION ;  SCALE DEPENDENCE ;  PION-PRODUCTION ;  QCD ;  OPERATORS ;  EVOLUTION
项目资助者: National Nature Science Foundation of the People's Republic of China [11275244, 11675241, 11605195] ;  CAS center for excellence in particle physics (CCEPP)
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/22086
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Recommended Citation:
Chen, AP,Ma, JP,Zhang, GP. One-loop corrections to single spin asymmetries at twist-3 in Drell-Yan processes[J]. PHYSICAL REVIEW D,2017,95(7):74005.
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