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Title: Transverse momentum dependent parton quasidistributions

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 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.

Authors:
 [1];  [2];  [3];  [4];  [5]
  1. Shanghai Jiao Tong Univ., Shanghai (China); Univ. of Maryland, College Park, MD (United States)
  2. Univ. of Connecticut, Storrs, CT (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. Regensburg, Regensburg (Germany)
  5. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1525516
Alternate Identifier(s):
OSTI ID: 1560600; OSTI ID: 1596001
Grant/Contract Number:  
AC02-05CH11231; SC0011090; SC0010339
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 99; Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Ji, Xiangdong, Jin, Lu -Chang, Yuan, Feng, Zhang, Jian -Hui, and Zhao, Yong. Transverse momentum dependent parton quasidistributions. United States: N. p., 2019. Web. doi:10.1103/physrevd.99.114006.
Ji, Xiangdong, Jin, Lu -Chang, Yuan, Feng, Zhang, Jian -Hui, & Zhao, Yong. Transverse momentum dependent parton quasidistributions. United States. doi:10.1103/physrevd.99.114006.
Ji, Xiangdong, Jin, Lu -Chang, Yuan, Feng, Zhang, Jian -Hui, and Zhao, Yong. Thu . "Transverse momentum dependent parton quasidistributions". United States. doi:10.1103/physrevd.99.114006.
@article{osti_1525516,
title = {Transverse momentum dependent parton quasidistributions},
author = {Ji, Xiangdong and Jin, Lu -Chang and Yuan, Feng and Zhang, Jian -Hui and Zhao, Yong},
abstractNote = {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.},
doi = {10.1103/physrevd.99.114006},
journal = {Physical Review D},
number = 11,
volume = 99,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/physrevd.99.114006

Citation Metrics:
Cited by: 4 works
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