TMD PDF's: gauge invariance, RG properties and Wilson lines

Journal Article · Mon Mar 23 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3122204· OSTI ID:21293467

Cherednikov, I O; Stefanis, N G ^[1]

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1. Institut fuer Theoretische Physik II, Ruhr-Universitaet Bochum D-44780 Bochum (Germany)

The UV divergences associated with transverse-momentum dependent (TMD) parton distribution functions (PDF) are calculated together with the ensuing one-loop anomalous dimensions in the light-cone gauge. Time-reversal-odd effects in the anomalous dimensions are observed and the role of Glauber gluons is discussed. A generalized renormalization procedure of TMD PDFs is proposed, relying upon the renormalization of contour-dependent operators with obstructions.

• OSTI ID: 21293467
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1105; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPTON EFFECT
DISTRIBUTION FUNCTIONS
FIELD OPERATORS
GAUGE INVARIANCE
GLUONS
HADRONS
LIGHT CONE
PHOTOPRODUCTION
QUARKS
RENORMALIZATION
T INVARIANCE
TRANSVERSE MOMENTUM