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LU-TP-10-07
MCNET-10-04
arXiv:1003.2384
Eur.Phys.J. C69 (2010) 1-18

by: Corke, R. (Lund U.) et al.

Abstract:
Several methods to improve the parton-shower description of hard processes by an injection of matrix-element-based information have been presented over the years. In this article we study (re)weighting schemes for the first/hardest emission. One objective is to provide a consistent matching of the POWHEG next-to-leading order generator to the Pythia shower algorithms. Another is to correct the default behaviour of these showers at large transverse momenta, based on a comparison with real-emission matrix elements.
Link: 
http://inspirehep.net/record/848634
Publ date: 
Wednesday, March 10, 2010 - 23:00