Precise predictions for $\mathrm{WH}$+jet production at the LHC

TL;DR

This paper provides highly accurate predictions for the production of a Higgs boson with a W boson and jet at the LHC, analyzing QCD corrections to improve theoretical reliability.

Contribution

It offers the first detailed analysis of QCD corrections up to third order for WH+jet production, enhancing prediction precision and reducing uncertainties.

Findings

QCD corrections stabilize cross section predictions.

Inclusion of $ ext{O}( ext{α}_s^3)$ corrections reduces theoretical uncertainties.

Differences between inclusive and exclusive jet processes are clarified.

Abstract

We present precise predictions for the production of a Higgs boson in association with a hadronic jet and a $\mathrm{W}$ boson at hadron colliders. The behaviour of QCD corrections are studied for fiducial cross sections and distributions of the charged gauge boson and jet-related observables. The inclusive process (at least one resolved jet) and the exclusive process (exactly one resolved jet) are contrasted and discussed. The inclusion of QCD corrections up to $\mathcal{O}(\alpha_{\text{s}}^3)$ leads to a clear stabilisation of the predictions and contributes substantially to a reduction of remaining theoretical uncertainties.