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Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 65: Experimentelle Methoden II

T 65.4: Talk

Wednesday, March 27, 2019, 16:45–17:00, S01

Identification of hadronically decaying tau leptons in CMS and determination of their energy correctionsJordy Degens, Günter Flügge, •Olena Hlushchenko, Wolfgang Lohmann, Thomas Müller, Dennis Roy, Hale Sert, Achim Stahl, and Alexander Zots — III. Physikalisches Institut B, RWTH Aachen University

In this talk, the identification of tau leptons decaying into hadrons in the CMS experiment will be explained and the performance of the latest multivariate discriminators will be presented. To calculate the mass of a particle decaying into tau leptons, any bias in the energy measurement or reconstruction of the tau lepton decay products must be determined and corrected for. The energy scales are determined to treat the charged and neutral components of the tau separately and are compared to the energy scale obtained without this separation. The dedicated energy scale measurement for the electrons faking tau leptons are discussed as well in the context of H→ττ analysis.

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