The Construction of Gauge-Links in Arbitrary Hard Processes

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dc.creatorBomhof, C. J.
dc.creatorMulders, P. J.
dc.creatorPijlman, F.
dc.date2006-01-20
dc.date.accessioned2026-07-07T12:25:24Z
dc.date.available2026-07-07T12:25:24Z
dc.descriptionTransverse momentum dependent parton distribution and fragmentation functions are described by hadronic matrix elements of bilocal products of field operators off the light-cone. These bilocal products contain gauge-links, as required by gauge-invariance. The gauge-links are path-ordered exponentials connecting the field operators along a certain integration path. This integration path is process-dependent, depending specifically on the short-distance partonic subprocess. In this paper we present the technical details needed in the calculation of the gauge-links and a calculational scheme is provided to obtain the gauge-invariant distribution and fragmentation correlators corresponding to a given partonic subprocess.
dc.identifierhttps://arxiv.org/abs/hep-ph/0601171
dc.identifierhttp://arxiv.org/abs/hep-ph/0601171
dc.identifierEur.Phys.J.C47:147-162,2006
dc.identifierdoi:10.1140/epjc/s2006-02554-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214601
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Construction of Gauge-Links in Arbitrary Hard Processes
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