2012/11/30 by Simon Plätzer, Simon Platzer · 1 citation
Physics and Astronomy · #Constraint (computer-aided design) #High-Energy Particle Collisions Research #Logarithm #Matrix (chemical analysis) #Matrix element #Particle physics theoretical and experimental studies #Parton #Parton shower #Quantum Chromodynamics and Particle Interactions #Shower #hep-ph
paper · pdf · doi:10.1007/jhep08(2013)114
9 pages, 2 figures; references updated
arxiv created 2012/12/03 · openalex publication_date 2013/08/01 · arxiv updated 2015/06/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A bstract We propose an extension of matrix element plus parton shower merging at tree level to preserve inclusive cross sections obtained from the merged and showered sample. Implementing this constraint generates approximate next-to-leading order (NLO) contributions similar to the LoopSim approach. We then show how full NLO, or in principle even higher order, corrections can be added consistently, including constraints on inclusive cross sections to account for yet missing parton shower accuracy at higher logarithmic order. We also show how NLO accuracy below the merging scale can be obtained.