Soft-gluon resolution scale in QCD evolution equations
High Energy Physics - Phenomenology
2017-08-23 v1
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.
Cite
@article{arxiv.1704.01757,
title = {Soft-gluon resolution scale in QCD evolution equations},
author = {F. Hautmann and H. Jung and A. Lelek and V. Radescu and R. Zlebcik},
journal= {arXiv preprint arXiv:1704.01757},
year = {2017}
}
Comments
Latex, 8 pages, 4 figures