Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 69, Issue 1-2, Pages 1-18Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-010-1409-0
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Funding
- Marie Curie Early Stage Training program HEP-EST [MEST-CT-2005-019626]
- Marie Curie research training network MCnet [MRTN-CT-2006-035606]
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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.
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