Bochum 2009 – scientific programme

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HK: Fachverband Hadronen und Kerne

HK 41: Accelerators and Instrumentation II

HK 41.5: Talk

Tuesday, March 17, 2009, 17:45–18:00, H-ZO 90

Analysis of ALICE - TRD test beam data — •Michael Kliemant — Johann Wolfgang Goethe-Universität, Frankfurt am Main, Deutschland

The Transition Radiation Detector (TRD) of the ALICE Experiment at the CERN-LHC is designed for high momentum electron identification in the central rapidity region. The measurement of electrons and positrons in Pb - Pb collisions is important for the analysis of quarkonia and heavy flavour production in the Quark Gluon Plasma (QGP). In November 2007 a test of one fully integrated TRD super module(final electronic and cooling set-up) at the CERN PS - accelerator with a mixed electron - pion beam (1, 2, 4 and 6 GeV/c) was performed. With this data set it is feasible to investigate the PID and tracking performance of the detector. The major aspect of this study is to improve the electron PID performance taking into account the correlations between the different detector layers due to Bremsstrahlung. Different PID - strategies will be discussed.