NNLO Time-like Splitting Functions in QCD
High Energy Physics - Phenomenology
2008-07-03 v1
Abstract
We review the status of the calculation of the time-like splitting functions for the evolution of fragmentation functions to the next-to-next-to-leading order in perturbative QCD. By employing relations between space-like and time-like deep-inelastic processes, all quark-quark and the gluon-gluon time-like splitting functions have been obtained to three loops. The corresponding quantities for the quark-gluon and gluon-quark splitting at this order are presently still unknown except for their second Mellin moments.
Cite
@article{arxiv.0807.0321,
title = {NNLO Time-like Splitting Functions in QCD},
author = {S. Moch and A. Vogt},
journal= {arXiv preprint arXiv:0807.0321},
year = {2008}
}
Comments
4 pages LaTeX, proceedings of the DIS 2008 Workshop, 7-11 April 2008, London