Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC
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2022
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DUNE is a dual-site experiment for long-baseline
neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a
6×6×6 m3 liquid argon time-projection-chamber (LArTPC)
that recorded cosmic-muon data at the CERN Neutrino Platform in 2019–2020 as a prototype of the DUNE Far Detector.
Charged particles propagating through the LArTPC produce
ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam
events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP,
scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier
tubes placed up to 7 m away from the ionizing track. In this
paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different
wavelength shifters, such as PEN and TPB, and the use of
Xe-doped LAr, considering its future use in giant LArTPCs.
The scintillation light production and propagation processes
are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties.
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ABUD, A. Abed et al. Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC. European Physical Journal C. Particles and Fields, Berlim, v. 82, e618, 2022. Disponível em: https://link.springer.com/article/10.1140/epjc/s10052-022-10549-w. Acesso em: 16 maio 2023.