Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 82: Invited Topical Talks 6

T 82.4: Eingeladener Vortrag

Donnerstag, 24. März 2022, 15:15–15:40, T-H16

Characterization of H boson events in the ττ decay channel with the full CMS Run-2 data set — •Sebastian Wozniewski — Georg-August-Universität, Göttingen, Germany

The LHC Run-2 data set of proton-proton collisions provides first deeper insights into the properties and production of Higgs bosons. Besides the verification of the assumed coupling structure, which remains a challenge, also differential investigations of Higgs boson events are important tests of the Standard Model (SM) Higgs sector. Moreover, models based on supersymmetry allow for modifications of the couplings of the SM-like Higgs boson to (down-type) fermions, which puts particular interest on the decay channel into tau leptons. The analysis of di-tau events of the full LHC Run-2 data set, taken by the CMS experiment, in the STXS framework for differential cross sections measurements is presented. It is based on modern technologies in terms of object identification, data-driven background modeling, and neural-network based multiclass event-classification. The full granularity of the differential STXS measurement, with twelve signal components, is reflected by the neural networks, in addition to the major background contributions.