A vertex reconstruction algorithm in the central detector of JUNO

Abstract

The Jiangmen Underground Neutrino Observatory (JUNO) is designed to study neutrino mass hierarchy and measure three of the neutrino oscillation parameters with high precision using reactor antineutrinos. It is also able to study many other physical phenomena, including supernova neutrinos, solar neutrinos, geo-neutrinos, atmosphere neutrinos, and so forth. The central detector of JUNO contains 20,000~tons of liquid scintillator (LS) and about 18,000 20-inch photomultiplier tubes (PMTs), which is the largest liquid scintillator one under construction in the world up today. The energy resolution is expected to be 3\%/$\sqrt{E(MeV)}$. To meet the requirements of the experiment, an algorithm of vertex reconstruction, which takes into account time and charge information of PMTs, has been developed by deploying the maximum likelihood method and well understanding the complicated optical processes in the liquid scintillator.

arXiv comment7 pages, 12 figures

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• Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment
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• Rayleigh scattering of linear alkylbenzene in large liquid scintillator detectors

Cited by in corpus (11)

• Calibration Strategy of the JUNO Experiment
• Mass Testing and Characterization of 20-inch PMTs for JUNO
• Event vertex and time reconstruction in large volume liquid scintillator detector
• A quantitative approach to select PMTs for large detectors
• Prediction of Energy Resolution in the JUNO Experiment
• Gravitational waves and neutrino oscillations in Chern-Simons axion gravity
• Prospects for Pre-supernova Neutrino Observation in Future Large Liquid-scintillator Detectors
• JUNO Physics and Detector
• Particle Identification at MeV Energies in JUNO
• Performance of the 1-ton Prototype Neutrino Detector at CJPL-I
• Neutron source-based event reconstruction algorithm in large liquid scintillator detectors