Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 84: Associated Higgs production and Higgs quantum numbers II

T 84.8: Talk

Thursday, March 18, 2021, 17:45–18:00, Ti

Associated production of two Higgs bosons with a top quark-antiquark pair in the CMS experiment — •Ellen Sarauer, Ulrich Husemann, and Philip Keicher — Institut für Experimentelle Teilchenphysik (ETP), Karlsruher Institut für Technologie (KIT)

To investigate predictions of the Standard Model of Particle Physics, the Higgs boson and its coupling to fermions are of great interest. After the discovery of the associated production of a Higgs boson with a top quark-antiquark pair, further studies in this field provide new physical insights. The associated production of two Higgs bosons with a top quark-antiquark pair allows the direct measurement of the top-Higgs-coupling, as well as the triple Higgs coupling.

The presentation is about a multivariate analysis focusing on the final state with a single lepton and the Higgs bosons decaying into bottom quark-antiquark pairs. The main topics are the analysis strategy, the most important background processes and systematic uncertainties. Additionally, an introduction is given to the multivariate classification technique with neural networks to distinguish between signal and background processes. The study of the associated production of two Higgs bosons with a top quark-antiquark pair is based on the simulated CMS dataset of 2017.