# ZA production in vector-boson scattering at next-to-leading order QCD

## TL;DR

This paper presents precise calculations of Z gamma production with two jets via vector boson fusion at NLO QCD, including off-shell effects, spin correlations, and anomalous couplings, with uncertainty analysis.

## Contribution

It provides the first NLO QCD predictions for Z gamma production in VBF with full off-shell effects and anomalous couplings, enhancing theoretical precision.

## Key findings

- NLO QCD corrections significantly affect cross sections and distributions.
- Uncertainties from scale choices and PDFs are quantified.
- Anomalous quartic gauge couplings impact the production rates and kinematic distributions.

## Abstract

Cross sections and differential distributions for ZA production in association with two jets via vector boson fusion are presented at next-to-leading order in QCD. The leptonic decays of the Z boson with full off-shell effects and spin correlations are taken into account. The uncertainties due to different scale choices and pdf sets are studied. Furthermore, we analyze the effect of including anomalous quartic gauge couplings at NLO QCD.