Top-quark pair production in association with two b-jets is computed at next-to-leading order QCD precision, including effects of the b-quark mass, and matched to a ttˉ+jets simulation in a variable flavor number scheme. The Monte Carlo realization of this method, called fusing, consistently embeds the four-flavor calculation in a particle-level event generator. As a first phenomenological application, we present observables relevant to the data-driven estimation of irreducible backgrounds to ttˉH-production.
@article{arxiv.2402.15497,
title = {$t\bar{t}b\bar{b}$ at NLO precision in a variable flavor number scheme},
author = {Lars Ferencz and Stefan Höche and Judith Katzy and Frank Siegert},
journal= {arXiv preprint arXiv:2402.15497},
year = {2024}
}