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T: Fachverband Teilchenphysik

T 49: Higgs-Boson 4 (Zerfälle in Fermionen)

T 49.5: Vortrag

Dienstag, 28. März 2017, 17:45–18:00, JUR 3

Embedding - A data driven Z → τ τ estimation method for H → τ τ — •Janek Bechtel, Stefan Wayand, Artur Akhmetshin, Roger Wolf, and Günter Quast — Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, Karlsruhe

The decay of the Higgs boson into τ-leptons is the easiest accessible signal to examine the coupling of the Higgs boson to fermions. The largest irreducible background for this signature results from Z bosons in the same decay channel. Embedding is a data driven method to model this background. Here, muons originating from Z → µ µ events are replaced by simulated τ-leptons. Compared to a full Monte Carlo background estimation, this method benefits from using data and thus reducing background uncertainties. To guarantee a good performance of this technique, a deep understanding of the event reconstruction with the CMS detector is required. In this talk, major developments, current results using 2016 data, and applications of the embedding technique are presented.