NNLO QCD Corrections to W+jet Production in NNLOJET

TL;DR

This paper presents NNLO QCD corrections to W+jet production, improving theoretical predictions and agreement with CMS experimental data at 8 TeV, with reduced uncertainties compared to NLO calculations.

Contribution

It provides the first comprehensive NNLO QCD calculation for W+jet production and applies it to multiple distributions and the W boson pT spectrum, enhancing precision.

Findings

NNLO corrections significantly improve data-theory agreement

Reduced scale uncertainties at NNLO compared to NLO

Enhanced accuracy in W boson transverse momentum predictions

Abstract

We give an overview of our calculation of the next-to-next-to-leading order (NNLO) QCD corrections to W + jet production in hadronic collisions. Phenomenological results for multiple differential distributions are compared to CMS data for 8 TeV proton-proton collisions. We further discuss the application of the calculation to the transverse momentum spectrum of inclusive W boson production, again accompanied by a comparison to 8 TeV CMS data. In both cases, the inclusion of NNLO QCD effects give an improved agreement between theory and data with considerably reduced scale uncertainties with respect to the next-to-leading order (NLO) results.