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T: Fachverband Teilchenphysik

T 60: Kalorimeter II

T 60.3: Talk

Friday, March 7, 2008, 14:30–14:45, KGI-HS 1024

In-situ calorimeter intercalibration using dijet events — •Pavel Weber — Kirchhoff-Institut für Physik, Heidelberg

The accuracy for most of the measurements planned in the ATLAS experiment at the LHC depends on the correct jet energy scale. This scale is affected on one hand by instrumental imperfections of the calorimeter system, and on the other hand by physics effects, such as parton radiation, multiple interactions, hadronisation effects etc. Various in-situ calibration methods will be used to check and correct for these effects. The calibration procedure using dijet events is discussed in this presentation. The results of performance tests of this method, based on full Geant4 simulations, are presented.