Performance of prototypes for the PANDA barrel EMC

16th International Conference on Calorimetry in High Energy Physics

Bremer, D.A.^1 ; Eissner, T.^1 ; Drexler, P.^1 ; Moritz, M.^1 ; Novotny, R.W.^1

II. Physikalisches Institut, JLU Gießen, Heinrich-Buff-Ring 16, Gießen

D-35392, Germany^1

关键词: Complete coverages;    Electromagnetic calorimeter;    Facility for antiproton and ion research;    GEANT4 simulation;    Particle identifications;    PbWO4 scintillators;    Proton collisions;    Strong interaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/587/1/012052/pdf
DOI  :  10.1088/1742-6596/587/1/012052

来源: IOP

【 摘 要 】

The PANDA experiment will be part of the future Facility for Antiproton and Ion Research (FAIR) and aims for the study of strong interaction within the charm sector via antiproton proton collisions up to antiproton momenta of 15 GeV/c. Reflecting the variety of the physics program the PANDA detector is designed as a multi-purpose detector able to perform tracking, calorimetry and particle identification with nearly complete coverage of the solid angle. The Electromagnetic Calorimeter (EMC) contained inside its Target Spectrometer is based on cooled PbWO4scintillator crystals. In order to ensure an excellent performance throughout the large dynamic range of photon/electron energies ranging from a few MeV up to 15 GeV an extensive prototyping phase is mandatory. This contribution describes the measured response of the EMC barrel part prototype PROTO60 at the largest design energy to secondary beams provided by the SPS at CERN. In addition to PROTO60 a tracking station was deployed, providing precise position information of the 15 GeV/c positrons. For calibration purposes a 150 GeV/c muon beam and cosmic radiation, in combination with estimations from GEANT4 simulations were used. The obtained performance concerning energy, position and time information is presented.