Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 3: Higgs-Boson 2 (assoziierte Produktion)

T 3.4: Talk

Monday, March 27, 2017, 17:30–17:45, JUR 5

Analysis of ttH (bb) at 13 TeV with the CMS Experiment — •Marcel Rieger, Martin Erdmann, Benjamin Fischer, Robert Fischer, Yannik Rath, and Florian Ralf von Cube — RWTH Aachen University, Aachen, Germany

The measurement of Higgs boson production in association with top-quark pairs (ttH) is a primary goal of the second run of the LHC. It allows for a direct measurement of the underlying Yukawa coupling, and therefore, represents a decisive probe of the Standard Model of particle physics. Due to the complex event topology and the presence of experimentally irreducible backgrounds from tt events, the analysis of events with the Higgs boson decaying into a pair of bottom-quarks is challenging.

We present an analysis performed with the CMS detector at a center-of-mass energy of 13 TeV. In order to increase measurement sensitivity, applied methods are extensively based on multi-variate methods such as Boosted Decision Trees (BDT) and Deep Neural Networks (DNN). Results are presented in terms of 95% CLs limits on the signal strength and expected sensitivity, and also of the measurement if released by CMS prior to the conference.