2012/07/11 by Barbara Jäger, Barbara Jager, Steven M. Schneider +2
Physics and Astronomy · #Boson #Electroweak interaction #Gauge boson #Gauge theory #High-Energy Particle Collisions Research #Jet (fluid) #Monte Carlo method #Nuclear physics #Observable #Particle physics #Particle physics theoretical and experimental studies #Parton #Parton shower #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Technicolor #Vector boson #Veto #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep09(2012)083
12 pages, 5 figures
arxiv created 2012/07/11 · openalex publication_date 2012/09/01 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present an implementation of electroweak Z-boson production in association with two jets at hadron colliders in the POWHEG framework, a method that allows the interfacing of NLO-QCD calculations with parton-shower Monte Carlo programs. We focus on the leptonic decays of the weak gauge boson, and take photonic and non-resonant contributions to the matrix elements fully into account. We provide results for observables of particular importance for the suppression of QCD backgrounds to vector-boson fusion processes by means of central-jet-veto techniques. While parton-shower effects are small for most observables associated with the two hardest jets, they can be more pronounced for distributions that are employed in central-jet-veto studies.