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Title
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TMD PDF's: gauge invariance, RG properties and Wilson lines
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Author
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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AIP conference proceedings / American Institute of Physics. - New York
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Publication
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New York
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2009
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ISSN
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0094-243X
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Volume/pages
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1105
(2009)
, p. 327-330
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ISI
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000265602100070
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