High-performance Generic Neutrino Detection in a LArTPC near the Earth's Surface with the MicroBooNE Detector

Abstract

Large Liquid Argon Time Projection Chambers (LArTPCs) are being increasingly adopted in neutrino oscillation experiments because of their superb imaging capabilities through the combination of both tracking and calorimetry in a fully active volume. Active LArTPC neutrino detectors at or near the Earth's surface, such as the MicroBooNE experiment, present a unique analysis challenge because of the large flux of cosmic-ray muons and the slow drift of ionization electrons. We present a novel Wire-Cell-based high-performance generic neutrino-detection technique implemented in MicroBooNE. The cosmic-ray background is reduced by a factor of 1.4$\times 10^5$ resulting in a 9.7\% cosmic contamination in the selected neutrino candidate events, for visible energies greater than 200~MeV, while the neutrino signal efficiency is retained at 88.4\% for ${\nu }_{\mu }$ charged-current interactions in the fiducial volume in the same energy region. This significantly improved performance compared to existing reconstruction algorithms, marks a major milestone toward reaching the scientific goals of LArTPC neutrino oscillation experiments operating near the Earth's surface.

arXiv comment8 pages, 2 figures

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• Testing of Cryogenic Photomultiplier Tubes for the MicroBooNE Experiment
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Cited by in corpus (15)

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• First Measurement of Energy-Dependent Inclusive Muon Neutrino Charged-Current Cross Sections on Argon with the MicroBooNE Detector
• Wire-Cell 3D Pattern Recognition Techniques for Neutrino Event Reconstruction in Large LArTPCs: Algorithm Description and Quantitative Evaluation with MicroBooNE Simulation
• Discovering Dark Matter at the LHC through Its Nuclear Scattering in Far-Forward Emulsion and Liquid Argon Detectors
• Inclusive cross section measurements in final states with and without protons for charged-current ${\nu }_{\mu }$-Ar scattering in MicroBooNE
• Enhanced low-energy supernova burst detection in large liquid argon time projection chambers enabled by Q-Pix
• Scintillation Light in SBND: Simulation, Reconstruction, and Expected Performance of the Photon Detection System
• First simultaneous measurement of differential muon-neutrino charged-current cross sections on argon for final states with and without protons using MicroBooNE data
• The science and technology of liquid argon detectors
• Optimizing the Hit Finding Algorithm for Liquid Argon TPC Neutrino Detectors Using Parallel Architectures
• Physics Prospects with MeV Neutrino-Argon Charged Current Interactions using Enhanced Photon Detection in Future LArTPCs
• Inclusive Search for Anomalous Single-Photon Production in MicroBooNE
• Enhanced search for neutral current $\Delta$ radiative single-photon production in MicroBooNE
• Neutrino Event Selection in the MicroBooNE Liquid Argon Time Projection Chamber using Wire-Cell 3-D Imaging, Clustering, and Charge-Light Matching
• A Hybrid 3D/2D Field Response Calculation for Liquid Argon Detectors with PCB Based Anode Plane