$t\bar tH$ production in NNLO QCD

TL;DR

This paper presents a detailed NNLO QCD calculation for $t\bar tH$ production, significantly improving theoretical predictions crucial for measuring the top-quark Yukawa coupling at the LHC.

Contribution

The authors provide the first NNLO QCD corrections for $t\bar tH$ production, enhancing the precision of theoretical predictions for this process.

Findings

NNLO corrections reduce theoretical uncertainties.

Enhanced accuracy in top-quark Yukawa coupling measurements.

Improved agreement with experimental data expectations.

Abstract

In this contribution we present our recent computation of the NNLO QCD corrections to the production of a Higgs boson associated with a top-antitop quark pair. This process is of great importance since it allows for a direct measurement of the top-quark Yukawa coupling, and the inclusion of NNLO corrections is crucial in order to provide theory predictions with an uncertainty competitive with the projected accuracy of the experimental measurements at the end of the high-luminosity phase of the LHC.