Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 46: Higgs Physics VI (top-Higgs Coupling)

T 46.1: Talk

Wednesday, April 2, 2025, 16:15–16:30, ZHG105

Significance Studies in the Dileptonic ttH(bb) Channel Using Run 3 CMS Simulation — •Philipp Nattland¹, Danyer Perez Adan¹, Kai Adamowicz¹, Lutz Feld¹, Valeria Botta¹, Kilian Krasenbrink¹, Matin Torkian², and Maria Aldaya Martin² — ¹RWTH Aachen University — ²DESY, Hamburg

The associated production of a top-quark pair with a Higgs boson (ttH) directly probes the top-Higgs Yukawa coupling, a key parameter in the Standard Model. This study focuses on the ttH(bb) channel with dileptonic top decays, using Run 3 CMS simulation. Building on previous measurements with Run 2 data, we optimize event selection and background suppression to enhance signal significance. A binned maximum likelihood fit is employed to extract the expected signal significance, serving as a figure of merit for the optimization.

Keywords: ttH; CMS