Soft QCD effects in VBS/VBF topologies

Author(s)
Carsten Bittrich, Patrick Kirchgaesser, Andreas Papaefstathiou, Simon Plätzer, Stefanie Todt
Abstract

We consider the impact of multi-parton interactions and colour reconnection on the modeling of vector boson fusion and vector boson scattering (VBS) final states at the Large Hadron Collider (LHC). We investigate how the variation of the model parameters, compatible with a reasonable spread of predictions around typical tuning observables, extrapolates into the VBS phase space. We study the implications of this variation on the total uncertainty budget attached to realistic simulations of the final states in current event generator predictions. We find that the variations have a non-trivial phase space dependence and become comparable in size to the perturbative uncertainties once next-to-leading order predictions are combined with parton shower evolution.

Organisation(s)
Particle Physics, Research Platform Erwin Schrödinger International Institute for Mathematics and Physics
External organisation(s)
Technische Universität Dresden, Lund University, Kennesaw State University, Karl-Franzens-Universität Graz
Journal
European Physical Journal C
Volume
82
No. of pages
9
ISSN
1434-6044
DOI
https://doi.org/10.1140/epjc/s10052-022-10741-y
Publication date
09-2022
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics
ASJC Scopus subject areas
Engineering (miscellaneous), Physics and Astronomy (miscellaneous)
Portal url
https://ucrisportal.univie.ac.at/en/publications/soft-qcd-effects-in-vbsvbf-topologies(1f63cd65-0ca7-42bb-8a37-4a38e6d473f4).html