Karlsruhe 2011 – scientific programme

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T: Fachverband Teilchenphysik

T 37: Top-Produktion II

T 37.4: Talk

Tuesday, March 29, 2011, 17:30–17:45, 30.22: 130

Measurement of top pair production cross section in the e+jets channel at ATLAS using a kinematic likelihood — Anna Henrichs, Jörg Meyer, •Adam Roe, Daniel Schiepel, Elizaveta Shabalina, and Arnulf Quadt — Georg-August-Universität Göttingen

Measuring the top pair production cross section at a center of mass energy of 7 TeV is one of the most interesting and exciting measurements possible using data from the LHC’s 2010 run. A measurement of the top pair production cross section in the electron+jets channel is performed using a kinematic likelihood fit with this dataset. Evaluation of the statistical and systematic uncertainties is described. Studies on electron identification and fakes in the context of this measurement are shown.