Author/Authors :
Seitz، نويسنده , , B. and Bettoni، نويسنده , , D. and Branford، نويسنده , , D. and Britting، نويسنده , , A. and Carassiti، نويسنده , , V. and Cecchi، نويسنده , , A. and Cowie، نويسنده , , E. and Dodokhof، نويسنده , , V.Kh. and Düren، نويسنده , , M. and Eyrich، نويسنده , , W. and Fِhl، نويسنده , , K. and Hayrapetyan، نويسنده , , A. and Hill، نويسنده , , G. and Hoek، نويسنده , , M. and Hohler، نويسنده , , R. and Kaiser، نويسنده , , R. and Keri، نويسنده ,
Abstract :
The PANDA experiment at the planned FAIR facility at GSI, Darmstadt, aims at measuring hadronic final states with unprecedented precision and luminosity. Superior particle identification of charged and neutral particles is mandatory to fulfil PANDAʹs physics aims. DIRC (Detection of Internally Reflected Cherenkov light) counters are foreseen for charged particle identification. A barrel DIRC will cover the central region while a disc DIRC will provide particle identification in the forward region.
DIRC concepts differing in the radiator geometry and method for dispersion correction are studied. The barrel DIRC uses a novel imaging system and aims at exploiting a 3D reconstruction to mitigate dispersion effects. Two concepts are investigated for the forward disc DIRC. One concept employs passive dispersion correction and focussing light guides for image reconstruction. Alternatively, time-of-propagation measurements and a wave-length dependent photon detection system are investigated. The three detector designs share common developments such as investigating radiator properties and photon detection systems, and use the same test beam facilities.
