Mr Patrick Rieck (Humboldt-University of Berlin)
Measurements of single topquark production in proton proton collisions are presented. The measurements include the first such measurements from the 13 TeV ATLAS dataset. In the leading order process, a W boson is exchanged in the tchannel. The single topquark and antitop total production cross sections, their ratio, as well as a measurement of the inclusive production cross section is presented. At 8 TeV, differential crosssection measurements of the tchannel process are also presented, these measurements include limits on anomalous contributions to the Wtb vertex. A measurement of the production cross section of a single top quark in association with a W boson, the second largest singletop production mode, is also presented. Finally, evidence for singletop production in the 8 TeV ATLAS dataset is presented. All measurements are compared to stateof theart theoretical calculations.
Dr Elizaveta Shabalina (University of Gottingen)