Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 71: Higgs 3 (coupling to b and c quarks)

T 71.3: Talk

Wednesday, March 6, 2024, 16:30–16:45, Geb. 30.41: HS 2

Extracting the Gluon Fusion Component of the Higgs Production in Association with a Z Boson through the ZH-WH Symmetry at the CMS Experiment — •Svenja Diekmann, Niclas Eich, and Martin Erdmann — III. Physikalisches Institut A, RWTH Aachen University

The gluon fusion production mechanism of the associated ZH production (gg→ ZH) is a yet unmeasured Standard Model process, sensitive to various new physics scenarios. The considered final state of the invisible Z boson decay and two b-jets is not only populated by large backgrounds arising from other processes, but also by the dominant quark initiated ZH production (qq→ ZH). In order to separate these two production mechanisms, the total ZH production can be utilised in combination with the WH production to extract the gluon fusion component by analysing the ratio of their cross sections. The strategy and first expected results of this analysis to extract the gluon fusion component of the ZH production are shown using the 2017 dataset of the CMS experiment.

Keywords: CMS; Higgs; VH; Hbb; Symmetry