Conference Presentation (Invited)

GSI-2017-00372

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The PANDA Barrel DIRC Detector

Schwiening, J. (Corresponding author)GSI*

2016

Abstract: The PANDA detector at the international accelerator Facility for Antiproton and IonResearch in Europe (FAIR) near GSI, Darmstadt, Germany will address fundamental questionsof hadron physics.Excellent Particle Identification (PID) over a large range of solid angles andparticle momenta will be essential to meet the objectives of the rich physics program,which includes charmonium spectroscopy, the search for hybrids and glueballs, and thestudy of the interaction of hidden and open charm particles with nucleons and nuclei.Charged PID for the barrel section of the target spectrometer will be provided bya DIRC (Detection of Internally Reflected Cherenkov light) detector.This counter will cover the angular range of 22-140 degrees and will need to cleanlyseparate charged pions from kaons for momenta between 0.5 GeV/c and 3.5 GeV/c with aseparation power of at least 3 standard deviations.The design of the PANDA Barrel DIRC detector is based on the successful BABARDIRC and the SuperB FDIRC R&D with several important improvements to optimize theperformance for PANDA, such as a focusing lens system, fast timing, and a compact fusedsilica prism as expansion region.We will discuss the baseline design of the PANDA Barrel DIRC, based on narrow barsmade of synthetic fused silica, and a complex multi-layer spherical lens system,and the potentially cost-saving design option using wide fused silica plates andwill present the result of tests of a large system prototype with a mixedhadron beam at CERN.

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Contributing Institute(s):

1. Hadronenspektroskopie (HSP)
2. PANDA Detektoren (HPD)
3. Collaboration FAIR: PANDA (PANDA@FAIR)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF3-612) (POF3-612)

Appears in the scientific report 2016

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