Dresden 2013 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 38: Instrumentation
HK 38.6: Talk
Tuesday, March 5, 2013, 15:15–15:30, WIL-C207
Performance of the PANDA Barrel DIRC Prototype using radiator plates — A. Gerhardt1, G. Kalicy1,2, D. Lehmann1, M. Patsyuk1,2, K. Peters1,2, G. Schepers1, C. Schwarz1, J. Schwiening1, and •M. Zühlsdorf1,2 — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — 2Goethe-Universität Frankfurt
The PANDA experiment at the new Facility for Antiproton and Ion Research in Europe (FAIR) at GSI, Darmstadt will study fundamental questions of hadron physics and QCD using high-intensity cooled antiproton beams with momenta between 1.5 and 15 GeV/c. Efficient Particle Identification (PID) for a wide momentum range and the full solid angle is required for reconstructing the various physics channels of the PANDA program. Hadronic PID in the barrel region of the detector will be provided by a DIRC (Detection of Internally Reflected Cherenkov light) counter. The design is based on the successful BABAR DIRC with important improvements, such as focusing optics and fast photon timing.
The use of wider fused silica plates instead of narrow bars, similar to the design of the Belle II iTOP detector, has been proposed to reduce the cost of the radiator production. This contribution describes the geometrical design and reconstruction method as well as results obtained with a prototype plate in a hadronic particle beam at CERN.
Work supported by EU6 grant, CN515873, DIRACsecondary-Beams, EU FP7 grant, CN227431, HadronPhysics2, and the Helmholtz Graduate School for Hadron and Ion Research HGS-HIRe.