Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions

2007/06/30 by Johan Alwall, J. Alwall, S. Hoeche +21 · 16 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-007-0490-5

published as Eur.Phys.J.C53:473-500,2008

openalex publication_date 2007/12/14 · arxiv created 2008/01/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

We compare different procedures for combining fixed-order tree-level matrix-element generators with parton showers. We use the case of W-production at the Tevatron and the LHC to compare different implementations of the so-called CKKW and MLM schemes using different matrix-element generators and different parton cascades. We find that although similar results are obtained in all cases, there are important differences.

Citations

• Multi-parton cross sections at hadron colliders

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