Higgs boson production in association with a jet at NNLO using jettiness subtraction

TL;DR

This paper applies the jettiness-subtraction scheme to compute Higgs boson production with a jet at NNLO in QCD, providing precise theoretical predictions for LHC phenomenology.

Contribution

It introduces a novel application of the jettiness-subtraction method to Higgs plus jet production at NNLO, achieving full perturbative accuracy.

Findings

Results agree with previous sector-improved residue subtraction calculations.

Provides detailed fiducial cross sections and distributions at the LHC.

Demonstrates the effectiveness of jettiness subtraction for complex NNLO computations.

Abstract

We use the recently proposed jettiness-subtraction scheme to provide the complete calculation of Higgs boson production in association with a jet in hadronic collisions through next-to-next-to-leading order in perturbative QCD. This method exploits the observation that the $N$-jettiness event-shape variable completely describes the singularity structure of QCD when final-state colored particles are present. Our results are in agreement with a recent computation of the $gg$ and $qg$ partonic initial states based on sector-improved residue subtraction. We present phenomenological results for both fiducial cross sections and distributions at the LHC.