The PANDA Barrel DIRC

Dzhygadlo R, Belias A, Gerhardt A, Lehmann D, Peters K, Schepers G, Schwarz C, Schwiening J, Traxler M, Wolf Y, Schmitt L, Böhm M, Gumbert K, Krauss S, Lehmann A, Miehling D, Düren M, Hayrapetyan A, Köseoglu I, Schmidt M, Wasem T, Sfienti C, Ali A (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Elsevier

Book Volume: 1055

Article Number: 168480

DOI: 10.1016/j.nima.2023.168480

Abstract

The PANDA experiment at the international accelerator Facility for Antiproton and Ion Research in Europe (FAIR), Darmstadt, Germany, will address fundamental questions of hadron physics using p̄p annihilations. Excellent Particle Identification (PID) over a large range of solid angles and particle momenta will be essential to meet the objectives of the rich physics program. Charged PID in the target region will be provided by a Barrel DIRC (Detection of Internally Reflected Cherenkov light) counter. The Barrel DIRC, covering the polar angle range of 22–140 degrees, will provide a π/K separation power of at least 3 standard deviations for charged particle momenta up to 3.5 GeV/c. The design of the Barrel DIRC features narrow radiator bars made from synthetic fused silica, an innovative multi-layer spherical lens focusing system, a prism-shaped synthetic fused silica expansion volume, and an array of lifetime-enhanced Microchannel Plate PMTs (MCP-PMTs) to detect the hit location and arrival time of the Cherenkov photons. Detailed Monte-Carlo simulations were performed, and reconstruction methods were developed to study the performance of the system. All critical aspects of the design and the performance were validated with system prototypes in a mixed hadron beam at the CERN PS. In 2020 the PANDA Barrel DIRC project advanced from the design stage to component fabrication. The series production of the fused silica bars was successfully completed in 2021 and delivery of the MCP-PMTs started in May 2022.

Authors with CRIS profile

Merlin Böhm Lehrstuhl für Experimentelle Astroteilchenphysik Katja Gumbert Lehrstuhl für Experimentelle Astroteilchenphysik Steffen Krauss Lehrstuhl für Experimentelle Astroteilchenphysik Albert Lehmann Lehrstuhl für Experimentelle Astroteilchenphysik Daniel Miehling Lehrstuhl für Experimentelle Astroteilchenphysik

Involved external institutions

Justus-Liebig-Universität Gießen DE Germany (DE) GSI Helmholtzzentrum für Schwerionenforschung GmbH DE Germany (DE) Helmholtz-Institut Mainz (HIM) DE Germany (DE) Facility for Antiproton and Ion Research in Europe GmbH (FAIR GmbH) DE Germany (DE) Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE)

How to cite

APA:

Dzhygadlo, R., Belias, A., Gerhardt, A., Lehmann, D., Peters, K., Schepers, G.,... Ali, A. (2023). The PANDA Barrel DIRC. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1055. https://dx.doi.org/10.1016/j.nima.2023.168480

MLA:

Dzhygadlo, R., et al. "The PANDA Barrel DIRC." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1055 (2023).

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