NLO corrections to electroweak and QCD production of W+W+ plus two jets in the POWHEGBOX

TL;DR

This paper implements NLO QCD corrections for W+W+jj production via vector-boson fusion in the POWHEGBOX, enabling more accurate simulations of these events in particle collider experiments.

Contribution

It provides the first matching of NLO QCD calculations for W+W+jj production to parton-shower programs within the POWHEG framework, including electroweak contributions.

Findings

Parton-shower effects are generally small on distributions.

Some observables relevant for jet veto analyses are significantly affected.

The implementation enhances the simulation capabilities for W+W+jj events.

Abstract

We present the matching of the next-to-leading order QCD calculation for W+W+jj production via vector-boson fusion in hadronic collisions to parton-shower Monte-Carlo programs according to the POWHEG method. Our implementation complements existing code for QCD-induced W+W+jj production in the POWHEGBOX package, thereby providing a platform for the complete Standard Model production of W+W+jj events via QCD and electroweak interactions. The impact of parton-shower effects is discussed for various distributions and found to be small in most cases. However, few observables, that are relevant for analyses using a central jet veto, are modified significantly when they are interfaced to a parton shower program.