Gauge-Invariant Gluon TMD and Evolution in the Coordinate Space

2015/11/02 by I. O. Cherednikov, Cherednikov, I. O.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-lat #hep-ph #nucl-th

paper · pdf · doi:10.48550/arxiv.1511.00517

7 pages. Presented at the QCD Evolution Workshop, 26 - 30 May 2015, Jefferson Lab, Newport News (VA), USA

arxiv created 2015/11/02 · arxiv updated 2015/11/03

Abstract

Maximally path-dependent gauge-invariant operator definition of the gluon transverse-momentum dependent pdf (gTMD) is discussed. It is argued that the evolution equations for the gTMD in the coordinate representation can be derived from the equations of motion in the generalised loop space, whose elements are the hadronic averages of the Wilson loops of entirely arbitrary shape.

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