Scintillation light detection in the long-drift ProtoDUNE-DP liquid argon TPC

TL;DR

This paper analyzes scintillation light detection in the ProtoDUNE-DP liquid argon TPC, enhancing understanding of light production and propagation to improve timing and detector performance in neutrino experiments.

Contribution

It provides a detailed analysis of scintillation light detection and compares experimental data with simulations, advancing knowledge of liquid argon properties.

Findings

Improved understanding of scintillation light production and propagation.

Validation of simulation models against experimental data.

Insights into detector timing capabilities.

Abstract

ProtoDUNE-DP is a 6x6x6 m3 liquid argon time-projection-chamber (LArTPC) operated at the Neutrino Platform at CERN in 2019-2020 as a prototype of the DUNE Far Detector. DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. The light signal in these detectors is crucial to provide precise timing capabilities. In ProtoDUNE-DP, scintillation light produced by cosmic muons inthe LArTPC is collected by the photomultiplier tubes (PMTs) placed up to 7 m away from the point of interaction. The scintillation light production and propagation processes are analyzed and compared to simulations, improving the understanding of some liquid argon properties.