Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 23: Instrumentation 9
HK 23.3: Vortrag
Dienstag, 24. März 2015, 15:15–15:30, M/HS4
Simulation and Reconstruction of the PANDA Barrel DIRC — •Roman Dzhygadlo1, Klaus Götzen1, Grzegorz Kalicy1,2, Harphool Kumawat1,3, Maria Patsyuk1,2, Klaus Peters1,2, Carsten Schwarz1, Jochen Schwiening1, and Marko Zühlsdorf1,2 for the PANDA Cherenkov Group of the PANDA collaboration — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 2Goethe-Universität Frankfurt — 3Bhabha Atomic Research Centre
Hadronic particle identification (PID) in the barrel region of the PANDA experiment at the new Facility for Antiproton and Ion Research in Europe (FAIR) at GSI, Darmstadt, will be provided by a DIRC (Detection of Internally Reflected Cherenkov light) counter. The design goal of the Barrel DIRC is to provide clean separation between pions and kaons with at least three standard deviations for momenta between 0.5 and 3.5 GeV/c and polar angles between 22° and 140°. To achieve this performance and reduce the detector cost, detailed simulations of the different design elements, such as the width of the radiators, the shape of the expansion volume and the type of focusing system, were performed using Geant. Custom reconstruction algorithms were developed to match the detector geometry. We will discuss the latest achievements in single photon resolution and photon yield as well as the PID performance for different design options of the Barrel DIRC detector.
Work supported by BMBF 05E12CD2, EU FP7 227431, HGS-HIRe.