Design studies of the PWO Forward End-cap calorimeter for PANDA

H. Moeini*, M. Al-Turany, M. Babai, A. Biegun, O. Bondarenko, K. Goetzen, M. Kavatsyuk, M. F. Lindemulder, H. Loehner, D. Melnychuk, J. G. Messchendorp, H. A. J. Smit, S. Spataro, R. Veenstra

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    The PANDA detection system at FAIR, Germany, is designed to study antiproton-proton annihilations, in order to investigate, among others, the realm of charm-meson states and glueballs, which has still much to reveal. The yet unknown properties of this field are to be unraveled through studying QCD phenomena in the non-perturbative regime. The multipurpose PANDA detector will be capable of tracking, calorimetry, and particle identification, and is planned to run at high luminosities providing average reaction rates up to 2 . 10(7) interactions/s. The envisaged physics program requires measurements of photons and charged particles with excellent energy, position, and time resolutions. The electromagnetic calorimeter (EMC) will serve as one of the basic components of the detector setup and comprises cooled lead-tungstate (PbWO4) crystals. This paper presents the mechanical design of the Forward End-cap calorimeter and analyzes the response of the Forward End-cap calorimeter in conjunction with the full EMC and the complete PANDA detector. The simulation studies are focused on the performance of the planned EMC with respect to the energy and spatial resolution of the reconstructed photons. Results of the Monte Carlo simulations, excluding very low-energy photons, have been validated by data obtained from a prototype calorimeter and shown to fulfil the requirements imposed by the PANDA physics program.

    Original languageEnglish
    Article number138
    Number of pages22
    JournalEuropean Physical Journal A
    Volume49
    Issue number11
    DOIs
    Publication statusPublished - 6-Nov-2013

    Keywords

    • PERFORMANCE
    • DETECTOR

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