W Plus Multiple Jets at the LHC with High Energy Jets

TL;DR

This paper presents predictions for W boson production with multiple jets at the LHC using the High Energy Jets framework, emphasizing regions where higher-order QCD effects are significant.

Contribution

It introduces the application of the High Energy Jets resummation framework to W+jets processes at the LHC, providing insights beyond NLO calculations.

Findings

Predictions agree with ATLAS data for certain observables.

Identifies phase space regions with large higher-order effects.

Highlights the importance of all-order resummation in multi-jet events.

Abstract

We study the production of a W boson in association with n hard QCD jets (for n>=2), with a particular emphasis on results relevant for the Large Hadron Collider (7 TeV and 8 TeV). We present predictions for this process from High Energy Jets, a framework for all-order resummation of the dominant contributions from wide-angle QCD emissions. We first compare predictions against recent ATLAS data and then shift focus to observables and regions of phase space where effects beyond NLO are expected to be large.