Bochum 2009 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
HK: Fachverband Hadronen und Kerne
HK 75: Accelerators and Instrumentation I
HK 75.1: Group Report
Thursday, March 19, 2009, 16:30–17:00, H-ZO 80
The Electromagnetic Calorimeter of PANDA at FAIR — •Aleksandra Biegun — KVI, University of Groningen, Groningen, The Netherlands
Antiproton-proton annihilations at the future FAIR facility at Darmstadt, Germany, will allow sensitive tests of QCD, the theory of strong interactions, in the regime of strong coupling. The PANDA detector aims at precision studies of charm-quark mesons, glue-balls, and mesons involving strong glue components. For these studies the electromagnetic calorimeter is one of the crucial detector components. The overall concept presented in the Technical Design Report [1] has been approved recently. The barrel part and the two end-caps of the calorimeter comprise more than 15000 PWO scintillation crystals of high quality with respect to optical performance and radiation hardness. Operation at low temperature and photo sensors, which are insensitive to strong magnetic fields, provide high light yield, optimum resolution and high count-rate capability. The performance of mass-produced PWO crystals and the quality of newly developed photo-sensors will be presented. The technical challenge of electronic developments and the prototype detector performance will be discussed. Performance characteristics have been incorporated in detailed large-scale simulations. Simulated results for specific reaction channels, e.g. the charmonium hc decay into 7 photons, will be presented to demonstrate the sensitivity to specific final states of charm-quark and hybrid meson states.
[1] TDR for PANDA EMC (2008), arXiv:0810.1216v1