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

Summary, in English

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.

• Author: J. Alwall; S. Hoeche; F. Krauss; Nils Lavesson; Leif Lönnblad; F. Maltoni; M.L. Mangano; M. Moretti; C.G. Papadopoulos; F. Piccinini; S. Schumann; M. Treccani; J. Winter; M. Worek
• Department/s: Theoretical Particle Physics - Undergoing reorganization
• Publishing year: 2008
• Language: English
• Pages: 473-500
• Publication/Series: European Physical Journal C. Particles and Fields
• Volume: 53
• Issue: 3
• Links: http://arxiv.org/pdf/0706.2569; http://dx.doi.org/10.1140/epjc/s10052-007-0490-5
• Document type: Journal article
• Publisher: Springer
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6044