Precise QCD predictions for the production of Higgs+jet final states

TL;DR

This paper presents next-to-next-to-leading order QCD calculations for Higgs boson production with a jet, significantly improving the precision of theoretical predictions crucial for Higgs property measurements at the LHC.

Contribution

It provides the first NNLO QCD predictions for Higgs+jet production, reducing theoretical uncertainties and enhancing the accuracy of Higgs boson analyses.

Findings

Substantial higher order corrections to key distributions.

Residual theoretical uncertainty reduced to about 9%.

Improved input for precision Higgs studies.

Abstract

We compute the cross section and differential distributions for the production of a Standard Model Higgs boson in association with a hadronic jet to next-to-next-to-leading order in quantum chromodynamics (QCD). In Higgs boson studies at the LHC, final states containing one jet are a dominant contribution to the total event rate, and their understanding is crucial for improved determinations of the Higgs boson properties. We observe substantial higher order corrections to transverse momentum spectra and rapidity distributions in Higgs-plus-one-jet final states. Their inclusion stabilises the residual theoretical uncertainty of the predictions around 9\%, thereby providing important input to precision studies of the Higgs boson.