Particle identification algorithms for the PANDA Endcap Disc DIRC

Schmidt, M.; Ali, Akbar; Belias, A.; Dzhygadlo, R.; Gerhardt, A.; Götzen, K.; Kalicy, G.; Krebs, M.; Lehmann, D.; Nerling, F.; Patsyuk, M.; Peters, K.; Schepers, G.; Schmitt, L.; Schwarz, C.; Schwiening, J.; Traxler, M.; Böhm, Michael; Eyrich, W.; Lehmann, A.; Pfaffinger, M.; Uhlig, F.; Düren, M.; Etzelmüller, E.; Föhl, K.; Hayrapetyan, A.; Kreutzfeld, K.; Merle, O.; Rieke, J.; Wasem, T.; Achenbach, P.; Cardinali, M.; Hoek, M.; Lauth, W.; Schlimme, S.; Sfienti, C.; Thiel, M.

doi:10.1088/1748-0221/12/12/c12051

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…The channel number and the beam position are a measure for the polar and azimuthal angle of the Cherenkov photons, respectively. The Endcap Disc DIRC prototype used a synthetic fused silica plate (500 × 500 × 20 mm 3 ) Each measured Cherenkov hit was reconstructed by using a geometrical reconstruction algorithm [20]. The results of the position (Figure 8, left) and angular scans (Figure 8, right) , first published in [6], agree with expectations from GEANT4 simulations.…”

Section: Experiments With Test Beamssupporting

confidence: 64%

The PANDA DIRCs

Schwarz,

Ali,

Belias

et al. 2021

Preprint

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The PANDA experiment at the FAIR facility adresses open questions in hadron physics with antiproton beams in the momentum range of 1.5-15 GeV/c. The antiprotons are stored and cooled in a High Energy Storage RING (HESR) with a momentum spread down to ∆p/p = 4•10 −5 . A high luminosity of up to 2 • 10 32 cm −2 s −1 can be achieved. An excellent hadronic particle identification (PID) will be provided by two Cherenkov detectors using the priciple of Detection of Internally Reflected Cherenkov light (DIRC). In the forward direction from polar angles of 5 • to 22 • , the Endcap Disc DIRC (EDD) separates pions from kaons up to momenta of 4 GeV/c. Between 22 • and 140 • the Barrel DIRC cleanly separates pions from kaons for momenta up to 3.5 GeV/c. This article * Corresponding author.describes the design of the Barrel DIRC and of the Endcap Disc DIRC and the validation of their designs in particle beams at the CERN PS.

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Section: Experiments With Test Beamssupporting

confidence: 64%

The PANDA DIRCs

Schwarz,

Ali,

Belias

et al. 2021

Preprint

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“…The Monte Carlo data can subsequently be extrapolated from the test beam geometry to the final geometry. A SPR value of 6.06 mrad, measured using a 3 GeV/c electron beam at DESY in 2016, corresponds to a SPR for pions in the full EDD detector of 1.8 mrad at the same momentum [4]. Another approach was taken for the so called combined event analysis, where the data taken during a vertical scan for a single FEL was combined to simulate a prototype equipped with 30 FELs (or 10 ROMs).…”

Section: Prototype Resultsmentioning

confidence: 99%

“…On average 22 photons are detected for each charged particle track. For geometrical reasons the performance depends on the particle track position and ranges between 1.1 and 2.2 mrad at 4 GeV/c which translates into a separation power between 3 and 6 standard deviations [4].…”

Section: Reconstruction and Performancementioning

confidence: 99%

The PANDA DIRC detectors

Etzelmüller

Schwiening

Ali

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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“…For optimization purposes, the geometries of both described DIRC detectors have been implemented in a Geant4 framework including all relevant optical and mechanical parameters, such as the efficiencies of the proposed MCP-PMTs, the transmission losses in the radiator material, and the reflectivity of the mirror on the backside of the attached FELs. The reconstruction has been performed using a dedicated algorithm that has already been described in a previous publication [8].…”

Section: Optimization Simulationsmentioning

confidence: 99%

DIRC options for the Super Charm Tau Factory

et al. 2020

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A: The Super Charm Tau Factory (SCTF) is a future facility to be built in Novosibirsk (Russia). It mainly addresses unanswered questions regarding the Standard Model (SM) of particle physics such as flavor violating decays and charmonium states beyond the open-charm threshold. SCTF is going to provide a luminosity up to 10 35 cm −2 s −1 with a center of mass (CMS) energy between 2 and 6 GeV. The physics programs studied in SCTF require excellent particle identification of muons and charged pions especially in the low momentum regime. In particular, the accurate separation of both particle species at momenta between 0.2 and 1.5 GeV is very important. Two Cherenkov detectors, based on the principle of detection of internally reflected Cherenkov radiation (DIRC), are proposed to cover the desired phase space over the full solid angle. Both detectors, the Endcap Disc DIRC (EDD) and the Barrel DIRC, have been originally designed for pion/kaon separation in the future PANDA detector at FAIR in Germany and need to be adapted and optimized for the SCTF detector in order to achieve the desired Cherenkov angle resolution of less than 1 mrad for particle momenta around 1 GeV/c.

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Particle identification algorithms for the PANDA Endcap Disc DIRC

Cited by 6 publications

References 7 publications

The PANDA DIRCs

The PANDA DIRCs

The PANDA DIRC detectors

DIRC options for the Super Charm Tau Factory

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