1998/09/18 by Gennaro Corcella, G. Corcella, Michael H. Seymour +1 · 2 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Matrix (chemical analysis) #Matrix element #Monte Carlo method #Particle physics theoretical and experimental studies #Parton #Parton shower #Phase space #Quantum Chromodynamics and Particle Interactions #Quark #hep-ph
paper · pdf · doi:10.1016/s0370-2693(98)01251-9
published as Phys.Lett. B442 (1998) 417-426 · 12 pages, 7 postscript figures
arxiv created 1998/09/18 · openalex publication_date 1998/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Parton showers are accurate for soft and/or collinear emission, but for a good description of the whole of phase space they need to be supplemented by matrix element corrections. In this paper, we discuss matrix element corrections to the decay t->Wb and apply our results to the HERWIG Monte Carlo event generator. The phenomenological results show marked improvement relative to previous versions and agree well with the exact first-order matrix-element calculation.