# Top-bottom interference effects in Higgs plus jet production at the LHC

## TL;DR

This paper calculates next-to-leading order QCD corrections to the top-bottom interference in Higgs plus jet production at the LHC, revealing large corrections and reduced uncertainties, enhancing theoretical precision.

## Contribution

It provides the first NLO QCD correction calculation for the top-bottom interference in Higgs plus jet production, combining recent two-loop amplitude computations with numerical methods.

## Key findings

- QCD corrections to interference are large and comparable to top-mediated Higgs production.
- Significant reduction in mass-renormalization scheme uncertainty at NLO.
- Improved theoretical predictions for Higgs plus jet processes at the LHC.

## Abstract

We compute next-to-leading order QCD corrections to the top-bottom interference contribution to H+j production at the LHC. To achieve this, we combine the recent computation of the two-loop amplitudes for gg -> Hg and qg -> Hq, performed in the approximation of a small b-quark mass, and the numerical calculation of the squared one-loop amplitudes for gg -> Hgg and qg -> Hqg performed within OpenLoops. We find that QCD corrections to the interference are large and similar to the QCD corrections to the top-mediated Higgs production cross section. We also observe a significant reduction in the mass-renormalization scheme uncertainty, once the NLO QCD prediction for the interference is employed.