Dortmund 2021 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 84: Associated Higgs production and Higgs quantum numbers II
T 84.5: Vortrag
Donnerstag, 18. März 2021, 17:00–17:15, Ti
Measurement of the top-Higgs coupling in the H→ bb final state at the CMS experiment — •Philip Keicher1, Ulrich Husemann1, Matthias Schröder2, Jan van der Linden1, and Sebastian Wieland1 — 1Institut für Experimentelle Teilchenphysik (ETP), Karlsruher Institut für Technologie (KIT) — 2Universität Hamburg
The production of the Higgs boson in association with a top quark-antiquark pair enables the direct measurement of the top-Higgs coupling, which is modeled to be a Yukawa-type coupling in the standard model of particle physics (SM). This production channel is expected to be sensitive to many models beyond the SM. Therefore, its measurement is a good test of the SM and of great importance to the theory community.
In this talk, an analysis is presented where the top quark-antiquark pair decays semileptonically and the Higgs boson decays into a bottom quark-antiquark pair. This entails a discussion of the analysis strategy, which is based on a classification using neural networks, as well as the most dominant background processes and systematic uncertainties. Finally, the presentation will cover the current status of the evaluation of the full Run-II data set collected at the CMS experiment.