Title
Gauge invariance and renormalization-group effects in transverse-momentum dependent parton distribution functions Gauge invariance and renormalization-group effects in transverse-momentum dependent parton distribution functions
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Physics
Source (journal)
arXiv
Volume/pages
(2007) , p. 1-5
Carrier
E-only publicatie
Target language
English (eng)
Abstract
A range of issues pertaining to the use of Wilson lines in integrated and transverse-momentum dependent (TMD) parton distribution functions (PDF) is discussed. The relation between gauge invariance and the renormalization properties of the Wilson-line integrals is given particular attention. Using an anomalous-dimensions based analysis in the light-cone gauge, a generalized definition of the TMD PDFs is proposed, which employs a cusped Wilson line, and contains an intrinsic "Coulomb-like" phase.
E-info
https://repository.uantwerpen.be/docman/iruaauth/714804/c64a8fb4796.pdf