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T: Fachverband Teilchenphysik

T 3: Higgs I

T 3.1: Vortrag

Montag, 19. März 2018, 16:00–16:15, Philo-HS3

Higgs to Tau Pair coupling measurement in the lepton-hadron final state with the ATLAS Detector — •Antonio De Maria^1,2 and Arnulf Quadt¹ — ¹II. Physikalisches Institut, Georg-August-Universität Göttingen — ²University of Pisa

The decay of the Higgs boson into a tau lepton pair is currently the only accessible channel to establish the Higgs-Yukawa coupling to leptons. In this context, the final state in which one tau decays hadronically and the other one decays leptonically (lepton-hadron channel) plays an important role due to the high branching ratio and the moderate background. This talk outlines the main aspects of the ongoing analysis on the coupling measurement in this final state using data from proton-proton collisions recorded by the ATLAS detector at a center-of-mass energy of 13 TeV during 2015-2016. The final part of the talk will be dedicated to the description of further developments like the addition of a low lepton transverse momentum category and the impact of the missing transverse energy reconstruction quality on event selection and tau pair mass reconstruction.