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D. Majumder, K. Mazumdar, T. Sjöstrand
A study of a NLO matrix element generator for Wgamma and matching scheme for NLO events and PYTHIA parton shower
Abstract
We compare a NLO W gamma matrix element generator with the leading order
calculation in Pythia . A matching scheme between a next-to-leading order
W gamma matrix element generator by Baur et. al. and the Pythia parton
shower is presented. The NLO package produces W gamma+0 jet and W
gamma+1jet final states in the hard scattering and the objective is to
consistently match these to the initial state radiation from Pythia parton
shower. The proposed methodology preserves both the rate of the hard
scattering process as well as various kinematic distributions of
experimental interest.
LU TP 10-06
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