Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 101: Top Quark V (Wirkungsquerschnitte)

T 101.5: Talk

Thursday, March 3, 2016, 17:45–18:00, VMP9 HS

Measurement of the inclusive top-quark pair cross section in the dilepton channel at 13 TeV with the CMS experiment — •Ali Harb, Maria Aldaya, Till Arndt, Carmen Diez Pardos, Alexander Grohsjean, Johannes Hauk, Eleni Ntomari, and Mykola Savitskyi — Deutsches Elektronen Synchrotron (DESY), Hamburg, Germany

The top quark is the heaviest known fundamental particle which is primarily produced in quark-antiquark pairs (tt) at the Large Hadron Collider (LHC). It decays almost exclusively to a b quark and a W boson. The final-state topology in the tt system is governed by the W boson decay mode. In this talk, the measurement of the top quark pair cross-section in the dilepton channel using a cut-and-count method will be presented. The dataset used for this measurement corresponds to an integrated luminosity of 2.1 fb⁻¹ collected by the Compact Muon Solenoid (CMS) experiment at a center-of-mass energy √s = 13 TeV.