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Article Dans Une Revue Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Année : 2023

Resistive Plate Chambers for Precise Measurement of High-Momentum Protons in Short Range Correlations at R$^3$B

M. Xarepe
  • Fonction : Auteur
T. Aumann
  • Fonction : Auteur
A. Blanco
  • Fonction : Auteur
D. Galaviz
  • Fonction : Auteur
H. Johansson
  • Fonction : Auteur
S. Linev
  • Fonction : Auteur
B. Löher
  • Fonction : Auteur
L. Lopes
  • Fonction : Auteur
J. Michel
  • Fonction : Auteur
V. Panin
  • Fonction : Auteur
D. Rossi
  • Fonction : Auteur
J. Saraiva
  • Fonction : Auteur
H. Törnqvist
  • Fonction : Auteur
M. Traxler
  • Fonction : Auteur

Résumé

The Reactions with Relativistic Radioactive Beams (R$^3$B) collaboration of the Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, has constructed an experimental setup to perform fundamental studies of nuclear matter, using as a probe reactions with exotic nuclei at relativistic energies. Among the various detection systems, one of the most recent upgrades consisted on the installation of a large area, around 2 m$^2$, multi-gap Resistive Plate Chamber (RPC), equipped with twelve 0.3 mm gaps and readout by 30 mm pitch strips, exhibiting a timing precision down to 50 ps and efficiencies above 98% for MIPs in a previous characterization of the detector. The RPC was part of the setup of the FAIR Phase 0 experiment that focused on measuring, for the first time, nucleon-nucleon short-range correlations (SRC) inside an exotic nucleus ($^{16}$C) that occurred in Spring 2022. The excellent timing precision of this detector will allow the measurement of the forward emitted proton momentum with a resolution of around 1%. In beam measurements show an RPC efficiency above 95% and a time precision better than 100 ps (including the contribution of a reference scintillator and the momentum spread of the particles) for forward emitted particles.

Dates et versions

hal-03925258 , version 1 (05-01-2023)

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Citer

M. Xarepe, T. Aumann, A. Blanco, A. Corsi, D. Galaviz, et al.. Resistive Plate Chambers for Precise Measurement of High-Momentum Protons in Short Range Correlations at R$^3$B. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2023, 1055, pp.168445. ⟨10.1016/j.nima.2023.168445⟩. ⟨hal-03925258⟩
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