Section Days abstract book 2010.indd - RUB Research School ...

NSE_17
CALIBRATING THE ELECTROMAGNETIC
CALORIMETER OF THE PANDA-DETECTOR
Bernhard Roth for the PANDA Collaboration
Institut für Experimentalphysik I
Ruhr-Universität Bochum, 44780 Bochum, Germany
email: bernhard@ep1.rub.de
PANDA (Anti-Proton ANnihilation at DArmstadt) is a future experiment for High Energy
Physics and will be part of the Facility for Antiproton and Ion Research (FAIR), located at the
GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany.
The experiment will investigate p annihilations with the aim to explore fundamental questions
in the cross over region of the non perturbative and the strong QCD.
One fundamental subcomponent of the detector will be the Electromagnetic Calorimeter
(EMC) with the ability to measure the kinematics of photons with high resolution. For this an
excellent calibration is mandatory. This is done by comparing the measured mass of pions
(decaying into two photons) with its well known property.
Such a calibration needs a frequent repetition, caused by environmental fluctuations.
Therefore this will be done permanently and in parallel to the running experiments.