New results on gauge-invariant TMD PDFs in QCD
| dc.creator | Cherednikov, I. O. | |
| dc.creator | Stefanis, N. G. | |
| dc.date | 2008-09-08 | |
| dc.date | 2008-11-06 | |
| dc.date.accessioned | 2026-07-07T10:15:35Z | |
| dc.date.available | 2026-07-07T10:15:35Z | |
| dc.description | The renormalization properties of unintegrated (transverse-momentum dependent) parton distribution functions (TMD PDF's) are used for analyzing their completely gauge-invariant definition. To this end, the UV anomalous dimension is calculated at the one-loop order in the light-cone gauge and a consistent treatment of the extra singularities, which produce undesirable contributions in the anomalous dimensions, is given. The generalized definition of a TMD PDF, based on the renormalization procedure for the Wilson exponentials with obstructions, is proposed. The reduction of the re-defined TMD PDF to the integrated PDF's, as well as their probabilistic interpretation, are discussed. | |
| dc.description | 7 pages, 2 figures. Talk presented by the first author at 15th International Seminar on High Energy Physics QUARKS-2008, Sergiev Posad, Russia, 23-29 May, 2008. v2: typo in the Eq. (20) corrected | |
| dc.identifier | https://arxiv.org/abs/0809.1315 | |
| dc.identifier | http://arxiv.org/abs/0809.1315 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/173218 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | New results on gauge-invariant TMD PDFs in QCD | |
| dc.type | text |