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A Simulation of QCD Radiation in Top Quark Decays

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arxiv hep-ph/0612236 v1 pith:4EB35L2V submitted 2006-12-19 hep-ph

A Simulation of QCD Radiation in Top Quark Decays

classification hep-ph
keywords correctionsdecaysemissionsquarkaccountadditionalgorithmsbranching
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this paper we describe a theoretical framework and algorithms for implementing QCD corrections to top quark decays in the Herwig++ event generator. The dominant corrections, due to soft and collinear emissions, are summed to all orders through the coherent parton branching formalism. In addition, unenhanced first-order matrix-element corrections are included to account for large transverse momentum emissions.

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