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HK: Fachverband Hadronen und Kerne

HK 25: Hadron Structure and Spectroscopy II

HK 25.7: Talk

Tuesday, March 17, 2009, 15:30–15:45, H-ZO 30

Charmed Meson Reconstruction with the PANDA Detector* — •René Jäkel, Kai-Thomas Brinkmann, Ralf Kliemt, and Oscar Reinecke for the PANDA collaboration — Universität Bonn, HISKP, Nussallee 14-16 and TU Dresden, IKTP, Zellescher Weg 19

The PANDA detector at the future GSI-FAIR facility will be a high precision experiment to study a variety of physics aspects of QCD at low energies. Using a high precision antiproton beam with momenta up to 15 GeV/c, the study of the charmonium system, the search of exotic mesonic states and glueballs and the investigation of in-medium modification of charmed mesons will be accessible. These different aspects of the rich physics program require an excellent tracking system to detect short-lived particles, e.g. for the survey of the charmonium system above the DD threshold.

To validate the physics performance of the planned PANDA detector, two pp → DD channels close to the production threshold in the charmonium system have been selected as benchmarks for the performance of PANDA, in particular for the tracking of charged particles. Although the DD production cross sections are unknown, an estimate on the expected signal to background ratio will be given. The main hadronic background sources as well as the physics of these processes will be discussed. * supported by BMBF and EU