Publication
Title
Renormalization, Wilson lines, and transverse-momentum-dependent parton-distribution functions
Author
Abstract
We perform an analysis of transverse-momentum dependent parton-distribution functions, making use of their renormalization properties in terms of their leading-order anomalous dimensions. We show that the appropriate Wilson line in the light cone gauge, associated with such quantities, is a cusped one at light cone infinity. To cancel the ensuing cusp anomalous dimension, we include in the definition of the transverse-momentum dependent parton-distribution functions an additional soft counter term (gauge link) along that cusped transverse contour. We demonstrate that this is tantamount to an "intrinsic (Coulomb) phase," which accumulates the full gauge history of the color-charged particle.
Language
English
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Lancaster, Pa : 2008
ISSN
0556-2821
Volume/pages
77:9(2008), 6 p.
Article Reference
094001
ISI
000256297000028
Medium
E-only publicatie
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 06.01.2015
Last edited 21.05.2017