Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-11-08
Conf.Proc.C070903:37-40,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 2 figures, Invited talk presented by the first author at the XII Advanced Research Workshop on High Energy Spin Physi
Scientific paper
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.
Cherednikov Igor O.
Stefanis N. G.
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