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Chai, XP; Chen, KB; Ma, JP
A note on Pretzelosity TMD parton distribution
Source PublicationPHYSICS LETTERS B
AbstractWe show that the transverse-momentum-dependent parton distribution, called as Pretzelosity function, is zero at any order in perturbation theory of QCD for a single massless quark state. This implies that Pretzelosity function is not factorized with the collinear transversity parton distribution at twist-2, when the struck quark has a large transverse momentum. Pretzelosity function is in fact related to collinear parton distributions defined with twist-4 operators. In reality, Pretzelosity function of a hadron as a bound state of quarks and gluons is not zero. Through an explicit calculation of Pretzelosity function of a quark combined with a gluon nonzero result is found. (C) 2018 Published by Elsevier B.V.
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
Indexed BySCIE
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[Chai, X. P.
2.Chen, K. B.
3.Ma, J. P.] Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
4.Ma, J. P.] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
5.[Ma, J. P.] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
6.[Ma, J. P.] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Chai, XP,Chen, KB,Ma, JP. A note on Pretzelosity TMD parton distribution[J]. PHYSICS LETTERS B,2019,789:360-365.
APA Chai, XP,Chen, KB,&Ma, JP.(2019).A note on Pretzelosity TMD parton distribution.PHYSICS LETTERS B,789,360-365.
MLA Chai, XP,et al."A note on Pretzelosity TMD parton distribution".PHYSICS LETTERS B 789(2019):360-365.
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