Paper
Soft-gluon resolution scale in QCD evolution equations
Authors
F. Hautmann, H. Jung, A. Lelek, V. Radescu, R. Zlebcik
Abstract
QCD evolution equations can be recast in terms of parton branching processes. We present a new numerical solution of the equations. We show that this parton-branching solution can be applied to analyze infrared contributions to evolution, order-by-order in the strong coupling , as a function of the soft-gluon resolution scale parameter. We examine the cases of transverse-momentum ordering and angular ordering. We illustrate that this approach can be used to treat distributions which depend both on longitudinal and on transverse momenta.