Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 95: Experimental methods V

T 95.5: Vortrag

Freitag, 3. April 2020, 12:00–12:15, H-HS VI

Scale factor measurement for the DeepTau tau lepton identification algorithm of CMS — •Maximilian Burkart, Günter Quast, and Roger Wolf — Karlsruhe Institute of Technology, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe, Germany

Analyses of final states involving hadronically decaying tau leptons suffer from large backgrounds stemming from misidentified jets, electrons or muons. A new identification algorithm for hadronically decaying tau leptons exploiting deep learning techniques has been developed by the CMS Collaboration to suppress these backgrounds. This algorithm combines low and high-level variables to simultaneously distinguish hadronic tau lepton decays, quark or gluon jets, electrons and muons.

In the first part of the talk this newly developed identification algorithm will be shortly introduced. The second part of the talk covers the measurement of scale factors correcting for efficiency differences of the algorithm in data and simulation.