Göttingen 2012 – scientific programme

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T: Fachverband Teilchenphysik

T 50: Supersymmetrie 1

T 50.5: Talk

Monday, February 27, 2012, 17:45–18:00, ZHG 010

Statistical Interpretation of CMS Search Results — •Felix Frensch — Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie

To be able to draw conclusion from physical results, one has to interpret them in a statistical way. This is especially true for High Energy Physics like experiments on the Large Hadron Collider at Cern in Genf. The treatment of systematic uncertainties is ambiguous and makes statistic approaches highly nontrivial. In this presentation different statistical methods will be introduced and the recommended (in both ATLAS and CMS experiments) "CLs" method will be motivated. The practical calculation of the expected and observed upper limit will be shown. By an example of a search for Supersymmetry different methods will be compared and resulting observed and expected upper limits will be discussed and interpreted.