https://doi.org/10.1140/epjc/s10052-022-10741-y
Regular Article - Theoretical Physics
Soft QCD effects in VBS/VBF topologies
1
Institut für Kern- und Teilchenphysik, TU Dresden, Dresden, Germany
2
Theoretical Particle Physics, Department of Astronomy and Theoretical Physics, Lund University, Lund, Sweden
3
Department of Physics, Kennesaw State University, 30144, Kennesaw, GA, USA
4
Institute of Physics, NAWI Graz, University of Graz, Universitätsplatz 5, 8010, Graz, Austria
5
Particle Physics, Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090, Vienna, Austria
6
Erwin Schrödinger Institute for Mathematics and Physics, University of Vienna, Boltzmanngasse 9, A-1090, Vienna, Austria
Received:
15
October
2021
Accepted:
21
August
2022
Published online:
3
September
2022
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.
© The Author(s) 2022
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