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T: Fachverband Teilchenphysik

T 101: Top Quark V (Wirkungsquerschnitte)

T 101.4: Vortrag

Donnerstag, 3. März 2016, 17:30–17:45, VMP9 HS

Measurement of the top-quark pair production cross section in the dilepton channel at a center of mass energy of 13 TeV with the CMS detector — •Till Arndt, Maria Aldaya, Carmen Diez Pardos, Alexander Grohsjean, Ali Harb, Johannes Hauk, Jan Kieseler, Andreas Meyer, Eleni Ntomari, and Mykola Savitskyi — Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, D-22607 Hamburg

Since the discovery of the top quark in 1995 at the Fermilab Tevatron collider, the top-quark pair production cross section has been measured with ever higher precision. Until now, no deviation from the standard model prediction has been found. However, the ttbar cross section remains one of the most important parameters to be measured in top physics. We present results for the top-quark pair production cross section at a center of mass energy of √s = 13   TeV using data taken by the CMS detector in 2015. Special attention will be given to the discussion of experimental uncertainties.