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题名: Collinear factorization for single transverse-spin asymmetry in Drell-Yan processes
作者: Ma, JP ;  Sang, HZ ;  Zhu, SJ
刊名: PHYSICAL REVIEW D
出版日期: 2012
卷号: 85, 期号:11, 页码:114011
关键词: DEEP-INELASTIC SCATTERING ;  FINAL-STATE INTERACTIONS ;  TO-BACK JETS ;  AZIMUTHAL ASYMMETRIES ;  PION-PRODUCTION ;  QUARK POLARIZATION ;  HARD-SCATTERING ;  CROSS-SECTION ;  PARTON DISTRIBUTIONS ;  HADRONIC SCATTERING
学科分类: Physics
通讯作者: Ma, JP (reprint author), Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
部门归属: [Ma, J. P.; Zhu, S. J.] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China; [Ma, J. P.] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Sang, H. Z.] E China Univ Sci & Technol, Inst Modern Phys, Sch Sci, Shanghai 200237, Peoples R China
英文摘要: We study the scattering of a single parton state with a multiparton state to derive the complete results of perturbative coefficient functions at leading order, which appear in the collinear factorization for single transverse-spin asymmetry (SSA) in Drell-Yan processes with a transversely polarized hadron in the initial state. We find that the factorization formula of SSA contains hard-pole, soft-quark-pole, and soft-gluon-pole contributions. It is interesting to note that the leading-order perturbative coefficient functions of soft-quark-pole and soft-gluon-pole contributions are extracted from parton-scattering amplitudes at one-loop, while the functions of hard-pole contributions are extracted from the tree-level amplitudes at tree-level. Our method to derive the factorization of SSA is different than the existing one in literature. A comparison of our results with those obtained by other methods is made here.
资助者: National Nature Science Foundation of P.R. China [10975169, 11021092, 11147168]; Fundamental Research Funds for the Central Universities [WM1114025]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000304808500004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15080
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Ma, JP,Sang, HZ,Zhu, SJ. Collinear factorization for single transverse-spin asymmetry in Drell-Yan processes[J]. PHYSICAL REVIEW D,2012,85(11):114011.
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