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Chen, AP; Ma, JP; Zhang, GP
One-loop corrections of single spin asymmetries in semi-inclusive DIS
发表期刊PHYSICAL REVIEW D
语种英语
关键词DEEP-INELASTIC SCATTERING ODD PARTON DISTRIBUTIONS DRELL-YAN PROCESSES TO-BACK JETS CHIRAL-ODD TRANSVERSE-MOMENTUM QCD LEPTOPRODUCTION EVOLUTION FACTORIZATION
摘要We study single spin asymmetries at one-loop accuracy in semi-inclusive DIS with a transversely polarized hadron in the initial state. Two measurable spin observables are predicted in the framework of QCD collinear factorization. One of the spin observables is the Sivers weighted asymmetry; another one is the Collins weighted asymmetry. The prediction takes a form of convolutions of perturbative coefficient functions and nonperturbative functions, which are twist-2 transversity distributions, twist-3 parton distributions, and twist-2 and twist-3 parton fragmentation functions. These nonperturbative functions can be extracted from measurements of the spin observables and provide valuable information of the inner structure of hadrons. The measurements can be done in current COMPASS and JLab experiments and in future experiments of EIC. The perturbative coefficient functions are calculated at the one-loop level. There are collinear divergences in the calculation involving chirality-even and chirality-odd twist operators. We find that all collinear divergences can be correctly subtracted so that the final results are finite.
2018
ISSN2470-0010
卷号97期号:5页码:54003
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.97.054003
收录类别SCIE
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22941
专题理论物理所科研产出_SCI论文
作者单位1.[Chen, A. P.
2.Ma, J. P.] Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
3.Ma, J. P.] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
4.Ma, J. P.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
5.Ma, J. P.] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
6.[Zhang, G. P.] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
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Chen, AP,Ma, JP,Zhang, GP. One-loop corrections of single spin asymmetries in semi-inclusive DIS[J]. PHYSICAL REVIEW D,2018,97(5):54003.
APA Chen, AP,Ma, JP,&Zhang, GP.(2018).One-loop corrections of single spin asymmetries in semi-inclusive DIS.PHYSICAL REVIEW D,97(5),54003.
MLA Chen, AP,et al."One-loop corrections of single spin asymmetries in semi-inclusive DIS".PHYSICAL REVIEW D 97.5(2018):54003.
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