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Ji, Xiangdong ; Jin, Lu-Chang ; Yuan, Feng ; Zhang, Jian-Hui ; Zhao, Yong

Transverse momentum dependent parton quasidistributions

Ji, Xiangdong, Jin, Lu-Chang , Yuan, Feng, Zhang, Jian-Hui and Zhao, Yong (2019) Transverse momentum dependent parton quasidistributions. Physical Review D 99 (11), 114006-1-114006-8.

Date of publication of this fulltext: 06 Apr 2021 13:14
Article
DOI to cite this document: 10.5283/epub.45502


Abstract

We investigate the transverse momentum dependent parton distributions (TMDs) in the parton quasidistributions framework. The longstanding hurdle of the so-called pinch pole singularity from the spacelike gauge links in the TMD definitions can be resolved by the finite length of the gauge link along the hadron moving direction. In addition, with the soft factor subtraction, the quasi-TMD is free ...

We investigate the transverse momentum dependent parton distributions (TMDs) in the parton quasidistributions framework. The longstanding hurdle of the so-called pinch pole singularity from the spacelike gauge links in the TMD definitions can be resolved by the finite length of the gauge link along the hadron moving direction. In addition, with the soft factor subtraction, the quasi-TMD is free of linear divergence. We further demonstrate that the energy evolution equation of the quasi-TMD a.k.a. the Collins-Soper evolution, only depends on the hadron momentum. This leads to a clear matching between the quasi-TMD and the standard TMDs.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review D
Publisher:AMER PHYSICAL SOC
Place of Publication:COLLEGE PK
Volume:99
Number of Issue or Book Chapter:11
Page Range:114006-1-114006-8
Date6 June 2019
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Identification Number
ValueType
10.1103/PhysRevD.99.114006DOI
KeywordsUNIVERSALITY;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-455021
Item ID45502

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