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Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 8: Higgs Boson: Decay in Fermions 1

T 8.1: Vortrag

Montag, 21. März 2022, 16:15–16:30, T-H21

Measurement of Higgs boson production cross sections in the di-τ decay channel with the ATLAS detector and the combination with other decay channels — •Frank Sauerburger, Karsten Köneke, Christopher Young, and Karl Jakobs — Albert-Ludwigs-Universität Freiburg, Deutschland

The coupling of the Higgs boson to τ-leptons is one of the most precisely measured couplings of the Higgs boson to fermions. A measurement of the production cross sections of the Higgs boson decaying into two τ-leptons is presented. The cross section is measured in the gluon-fusion, vector-boson-fusion, W/Z boson associated, and top-quark pair associated production channels. The study illustrates the application of machine-learning techniques. The analysis uses proton-proton collision data at a center-of-mass energy √s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded during Run 2 with the ATLAS detector at the LHC.

In addition, the combination of this measurement with other Higgs boson production and decay channels is presented. The presentation focuses on the measurement of coupling modifiers in the κ framework.

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