Ontology type: schema:ScholarlyArticle Open Access: True
2002-06-12
AUTHORSStefano Frixione, Bryan R. Webber
ABSTRACTWe propose a method for matching the next-to-leading order (NLO) calculation of a given QCD process with a parton shower Monte Carlo (MC) simulation. The method has the following features: fully exclusive events are generated, with hadronization according to the MC model; total exclusive rates are accurate to NLO; NLO results for distributions are recovered upon expansion in αs; hard emissions are treated as in NLO computations while soft/collinear emissions are handled by the MC simulation, with the same logarithmic accuracy as the MC; and matching between the hard- and soft/collinear-emission regions is smooth. A fraction of events with negative weight is generated, but unweighting remains possible with reasonable efficiency. The method is clarified using a simple toy model, and illustrated by application to the hadroproduction of W+W− pairs. More... »
PAGES029
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DOIhttp://dx.doi.org/10.1088/1126-6708/2002/06/029
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