Fast evolution of parton distributions

Stefan Weinzierl

Published 2002-03-13, updated 2002-06-14Version 2

I report on a numerical program for the evolution of parton distributions. The program uses the Mellin-transform method with an optimized contour. Due to this optimized contour the program needs only a few evaluations of the integrand and is therefore extremely fast. In addition, the program can also be used to reproduce the results of the x-space method.