Vector boson plus one jet production in POWHEG

TL;DR

This paper implements a next-to-leading order calculation of vector boson plus one jet production in hadronic collisions within the POWHEG framework, including spin correlations and matching with parton showers, validated against collider data.

Contribution

It introduces an automated implementation of NLO vector boson plus one jet production in POWHEG-BOX, incorporating spin correlations and matching with PYTHIA for realistic simulations.

Findings

Good agreement with Tevatron data

Accurate modeling of vector boson decay correlations

Enhanced simulation capabilities for LHC processes

Abstract

We present an implementation of the next-to-leading order vector boson plus one jet production process in hadronic collision in the framework of POWHEG, which is a method to implement NLO calculations within a Shower Monte Carlo context. All spin correlations in the vector boson decay products have been taken into account. The process has been implemented in the framework of the POWHEG-BOX, an automated computer code for turning a NLO calculation into a shower Monte Carlo program. We present phenomenological results for the case of the Z/gamma plus one jet production process, obtained by matching the POWHEG calculation with the shower performed by PYTHIA, for the LHC, and we compare our results with available Tevatron data.