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Bonn 2020 – scientific programme

The DPG Spring Meeting in Bonn had to be cancelled! Read more ...

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T: Fachverband Teilchenphysik

T 70: Higgs: Decay into fermions II

T 70.9: Talk

Thursday, April 2, 2020, 18:30–18:45, H-HS I

Standard model Higgs physics in the ττ final stateJanek Bechtel, Sebastian Brommer, Maximilian Burkart, Artur Gottmann, Simon Jörger, Günter Quast, Moritz Scham, Roger Wolf, Stefan Wunsch, and •Sebastian Wozniewski — Karlsruhe Institute of Technology, Karlsruhe, Germany

The ττ final state allows for highly relevant investigations of the Higgs sector in the context of couplings to fermions. With the data of the full LHC Run II, the sensitivity in this channel is large enough to aim for fiducial cross sections that are differential in the phase space of the Higgs boson production, known as simplified template cross section (STXS) measurements. This talk summarizes recent milestones on the way to a Run II legacy analysis of CMS in the context of the SM Higgs boson in the named decay channel. The machine learning approach that was presented earlier in a preliminary result has been further developed and tailored to this STXS measurement. Tau embedding and the extrapolation of background with jets misidentified as hadronic taus are used for both the training and the statistical inference, which makes this analysis data driven to a large extent and less dependent on the simulation of the underlying physics or detector and beam conditions.

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