A comparison of NNLO QCD predictions with 7 TeV ATLAS and CMS data for $V$+jet processes

TL;DR

This paper compares NNLO QCD predictions for W+jet and Z+jet processes with 7 TeV data from ATLAS and CMS, showing excellent agreement and highlighting the importance of NNLO corrections for certain observables.

Contribution

It provides a detailed comparison demonstrating the accuracy of NNLO QCD predictions against experimental data for vector boson plus jet processes.

Findings

Excellent agreement between NNLO predictions and experimental data.

NNLO corrections are crucial for accurate modeling of the $H_T$ distribution.

Discrepancies in some observables are resolved with NNLO corrections.

Abstract

We perform a detailed comparison of next-to-next-to-leading order (NNLO) QCD predictions for the W+jet and Z+jet processes with 7 TeV experimental data from ATLAS and CMS. We observe excellent agreement between theory and data for most studied observables, which span several orders of magnitude in both cross section and energy. For some observables, such as the $H_T$ distribution, the NNLO QCD corrections are essential for resolving existing discrepancies between theory and data.