SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 82: Higgs, Di-Higgs II

T 82.3: Vortrag

Mittwoch, 22. März 2023, 18:00–18:15, HSZ/0105

NMSSM di-Higgs search in bbττ final states — •Nikita Shadskiy, Ulrich Husemann, Moritz Molch, Michael Waßmer, and Roger Wolf — Institute of Experimental Particle Physics (ETP), Karlsruhe Institute of Technology (KIT)

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) introduces additional Higgs bosons with different masses next to the already known SM-like Higgs boson. A full CMS run II data analysis (JHEP 11 (2021) 057), which focuses on such a beyond Standard Model search, was previously performed for the decay of a heavy Higgs boson into two lighter Higgs bosons i.e. H →h_S(bb)h_SM(ττ), with h_SM being the SM-like Higgs boson with a mass of 125 GeV.
The new analysis presented in this talk introduces some changes to the previous analysis to improve the results. One of the improvements is to consider both possible Higgs boson decay channels h_S(bb)h_SM(ττ) and h_S(ττ)h_SM(bb), another is to improve the sensitivity of the measurement, especially in high mass regions of H, by considering boosted topologies. Besides that, the newest CMS reconstruction of run II data will be used, which also includes updates of the data-driven background estimation methods.