Soft QCD effects in VBS/VBF topologies

Autor(en)
Carsten Bittrich, Patrick Kirchgaesser, Andreas Papaefstathiou, Simon Plätzer, Stefanie Todt
Abstrakt

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(en)
Teilchenphysik, Forschungsplattform Internationales Erwin Schrödinger Institut für Mathematik und Physik
Externe Organisation(en)
Technische Universität Dresden, Lund University, Kennesaw State University, Karl-Franzens-Universität Graz
Journal
European Physical Journal C
Band
82
Anzahl der Seiten
9
ISSN
1434-6044
DOI
https://doi.org/10.1140/epjc/s10052-022-10741-y
Publikationsdatum
09-2022
Peer-reviewed
Ja
ÖFOS 2012
103012 Hochenergiephysik
ASJC Scopus Sachgebiete
Engineering (miscellaneous), Physics and Astronomy (miscellaneous)
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/1f63cd65-0ca7-42bb-8a37-4a38e6d473f4