164 research outputs found
HDGeant4 - Geant4-based simulation of the Hall D photon beamline and the GlueX spectrometer
No full textInitial release for citation
primary author: R.T. Jones
contributing authors: D. Lawrence, N. Sparks, A. Austregesilo, M. Ito, I. Jaegle, J. Stevens, M. Patsyuk, R. Dzhygadlo, S. Dobbs, S. Taylor, T. Britton, E. Smith, N. Jarvis, Y. Jiey, B. ZihlmannIf you use this software, please cite it as below
DIRC-based PID for the EIC Central Detector
No full textThe physics program for the Electron-Ion Collider (EIC) detector requires charged Particle Identification (PID) (e/π, π/K, K/p) over a wide momentum range. It is expected that the PID system will need to include one or more Cherenkov counters to achieve this goal. A radially compact DIRC (Detector of Internally Reflected Cherenkov light) counter is an attractive option in barrel region.The ongoing R&D investigates ways to extend the momentum coverage of a DIRC counter for the EIC detector beyond the current state-of-the-art with clean π/K separation up to at least 6 GeV/c. Possible design improvements include a complex imaging system, comprising multi-component spherical lenses, a compact fused silica expansion volume, and multi-anode sensors with smaller pixels, providing fast single-photon timing in high magnetic fields, a time-based PID algorithm, and chromatic dispersion mitigation.We will discuss the current status of the design studies with Geant simulations, improvements to the time-based imaging reconstruction, and the results of prototype tests with particle beams at CERN
The PANDA Barrel DIRC Detector at FAIR
No full textThe PANDA experiment at the international accelerator Facility for Antiproton andIon Research in Europe (FAIR) near GSI, Darmstadt, Germany will address fundamentalquestions of hadron physics. Excellent Particle Identification (PID) over a largerange of solid angles and particle momenta will be essential to meet the objectivesof the rich physics program. Charged PID for the barrel region of the PANDA targetspectrometer will be provided by a DIRC (Detection of Internally Reflected Cherenkov light) detector.The PANDA Barrel DIRC is designed to cover the polar angle range of 22-140 degreesand separate charged pions from kaons for momenta between 0.5 GeV/c and 3.5 GeV/cwith a separation power of at least 3 standard deviations. The design is based onthe successful BABAR DIRC and the SuperB FDIRC R&D with several importantimprovements to optimize the performance for PANDA, such as a focusing lens system,fast timing, a compact fused silica prism as expansion region, and lifetime-enhanced Microchannel-Plate PMTs for photon detection.Detailed Monte-Carlo simulations were performed and two reconstruction methodwere developed to study the performance of the design.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 andpresent the result of tests of a large system prototype with a mixed hadron beam at CERN
The Barrel DIRC Detector for the PANDA Experiment at FAIR
No full textThe PANDA experiment at the international accelerator Facility for Antiproton and Ion Research in Europe (FAIR) near GSI, Darmstadt, Germany will address fundamental questions of hadron physics. 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 for the barrel region of the PANDA target spectrometer will be provided by a DIRC (Detection of Internally Reflected Cherenkov light) detector.The PANDA Barrel DIRC will cover the polar angle range of 22-140 degrees and separate charged pions from kaons for momenta between 0.5 GeV/c and 3.5 GeV/c with a separation power of at least 3 standard deviations. The design is based on the successful BABAR DIRC and the SuperB FDIRC R&D with several important improvements to optimize the performance for PANDA, such as a focusing lens system, fast timing, a compact fused silica prism as expansion region, and lifetime-enhanced Microchannel-Plate PMTs for photon detection. We will discuss the baseline design of the PANDA Barrel DIRC, based on narrow bars made of synthetic fused silica and a complex multi-layer spherical lens system, and the potentially cost-saving design option using wide fused silica plates, and present the result of tests of a large system prototype with a mixed hadron beam at CERN
The Endcap Disc DIRC for PANDA at FAIR
No full textThe Endcap Disc DIRC for the PANDA experiment is going to provide an excellent particle identification up to particle momenta of 4 GeV/c. It covers the polar angles from 5◦ to 22◦ and guarantees a separation power of more than 3
standard deviations (s.d.) for pions and kaons in the required phase space. The simulated detector performance has been validated during several testbeam campaigns.
Additionally, the transmission losses of the optical filter has been investigated to estimate the filter performance at the end of the PANDA lifetime
The innovative design of the PANDA Barrel DIRC
No full textThe Barrel DIRC of the PANDA experiment at FAIR will cleanly separate pions from kaons for the physics program of PANDA. Innovative solutions for key components of the detector sitting in the strong magnetic field of the compact PANDA target spectrometer as well as two reconstruction methods were developed in an extensive prototype program. The technical design and present results from the test beam campaigns at the CERN PS in 2017 and 2018 are discussed
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