Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-04-17
Phys.Rev.D80:054008,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 2 figures. v2 15 pages, text expanded, 2 figures added, typos removed. v3 some remarks added in conclusions; matches
Scientific paper
10.1103/PhysRevD.80.054008
The renormalization-group properties of transverse-momentum dependent parton distribution functions in the light-cone gauge with the Mandelstam-Leibbrandt prescription for the gluon propagator are addressed. An expression for the transverse component of the gauge field at light-cone infinity, which plays a crucial role in the description of the final-/initial-state interactions in the light-cone axial gauge, is obtained. The leading-order anomalous dimension is calculated in this gauge and the relation to the results obtained in other gauges is worked out. It is shown that, using the Mandelstam-Leibbrandt prescription, the ensuing anomalous dimension does not receive contributions from extra rapidity divergences related to a cusped junction point of the Wilson lines.
Cherednikov Igor O.
Stefanis N. G.
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