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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.
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| Item type | Article | ||||
| Journal or Publication Title | Physical 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 | ||||
| Date | 6 June 2019 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer | ||||
| Identification Number |
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| Keywords | UNIVERSALITY; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Yes | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-455021 | ||||
| Item ID | 45502 |
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