# Parton-shower effects in electroweak $WZjj$ production at the next-to-leading order of QCD

## TL;DR

This paper implements electroweak WZjj production at NLO QCD in the POWHEG BOX, providing realistic LHC predictions and analyzing theoretical uncertainties and shower effects on observables.

## Contribution

It introduces a POWHEG implementation of WZjj production with NLO accuracy, enabling improved simulations of electroweak processes at the LHC.

## Key findings

- Dependence on factorization and renormalization scales is mild beyond LO.
- Tagging jets are stable against parton-shower effects.
- Central-jet veto observables are sensitive to the shower Monte-Carlo program.

## Abstract

We present an implementation of $WZjj$ production via vector-boson fusion in the POWHEG BOX, a public tool for the matching of next-to-leading order QCD calculations with multi-purpose parton-shower generators. We provide phenomenological results for electroweak $WZjj$ production with fully leptonic decays at the LHC in realistic setups and discuss theoretical uncertainties associated with the simulation. We find that beyond the leading-order approximation the dependence on the unphysical factorization and renormalization scales is mild. The two tagging jets are furthermore very stable against parton-shower effects. However, considerable sensitivities to the shower Monte-Carlo program used are observed for central-jet veto observables.