Feb 11 – 15, 2013
Vienna University of Technology
Europe/Vienna timezone

First Particle Identification with a Disc DIRC Detector

Feb 13, 2013, 9:00 AM
Vienna University of Technology

Vienna University of Technology

Gußhausstraße 25-29, 1040 Wien (Vienna), Austria


Dr Klaus Föhl (Justus-Liebig-Universität Gießen)


The PANDA experiment at the FAIR laboratory, currently under construction at GSI in Darmstadt, Germany, requires excellent Particle Identification for its study of proton-antiproton reactions in the few GeV energy range. In the confined space of the PANDA Target Spectrometer, two RICH-type Cherenkov detectors mainly aim at pion-kaon separation: a Barrel-DIRC detector patterned after the BaBar-DIRC covering the central angles, and a Disc-DIRC detector for the forward theta angle range from 5 to 22 degrees. Such a Disc-DIRC design has not yet been used in production experiments. A demonstrator prototype, one quarter segment scaled to 80 percent of the PANDA geometry, constructed at Giessen university and equipped with 480 sensor pixels, has measured particles of several GeV/c in a cocktail secondary beam delivered by the T9 test beamline at CERN in October 2012. First analysis of the recorded hit patterns will be presented, compared to simulations and discussed.
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Primary author

Dr Klaus Föhl (Justus-Liebig-Universität Gießen)


Mr Alexander Becker (Justus-Liebig-Universität Gießen) Dr Avetik Hayrapetyan (Justus-Liebig-Universität Gießen) Mr Benno Kröck (Justus-Liebig-Universität Gießen) Mr Daniel Mühlheim (Justus-Liebig-Universität Gießen) Mr Julian Rieke (Justus-Liebig-Universität Gießen) Prof. Michael Johannes Düren (Justus-Liebig-Universitaet Gießen) Mr Oliver Merle (Justus-Liebig-Universität Gießen) Dr Yong Liu (Justus-Liebig-Universität Gießen)

Presentation materials