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Chen, AP; Ma, JP; Ma, JP (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.; Ma, JP (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.; Ma, JP (reprint author), Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.
Light-cone singularities and transverse-momentum-dependent factorization at twist-3
发表期刊PHYSICS LETTERS B
语种英语
摘要We study transverse-momentum-dependent factorization at twist-3 for Drell-Yan processes. The factorization can be derived straightforwardly at leading order of alpha(s). But at this order we find that light-cone singularities already exist and effects of soft gluons are not correctly factorized. We regularize the singularities with gauge links off the light-cone and introduce a soft factor to factorize the effects of soft gluons. Interestingly, the soft factor must be included in the definition of subtracted TMD parton distributions to correctly factorize the effects of soft gluons. We derive the Collins-Soper equation for one of twist-3 TMD parton distributions. The equation can be useful for resummation of large logarithms terms appearing in the corresponding structure function in collinear factorization. However, the derived equation is nonhomogeneous. This will make the resummation complicated. (C) 2017 The Authors. Published by Elsevier B.V.
2017
卷号768页码:380-386
学科领域Astronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1016/j.physletb.2017.03.015
项目资助者National Natural Science Foundation of China [11275244, 11675241] ; National Natural Science Foundation of China [11275244, 11675241] ; National Natural Science Foundation of China [11275244, 11675241] ; National Natural Science Foundation of China [11275244, 11675241] ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP)
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22058
专题理论物理所科研产出_SCI论文
通讯作者Ma, JP (reprint author), Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.; Ma, JP (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.; Ma, JP (reprint author), Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.
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Chen, AP,Ma, JP,Ma, JP ,et al. Light-cone singularities and transverse-momentum-dependent factorization at twist-3[J]. PHYSICS LETTERS B,2017,768:380-386.
APA Chen, AP,Ma, JP,Ma, JP ,Ma, JP ,&Ma, JP .(2017).Light-cone singularities and transverse-momentum-dependent factorization at twist-3.PHYSICS LETTERS B,768,380-386.
MLA Chen, AP,et al."Light-cone singularities and transverse-momentum-dependent factorization at twist-3".PHYSICS LETTERS B 768(2017):380-386.
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