PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Neutrino Physics
The JUNO detector: design concept and status
A.C. Re
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Pre-published on: November 10, 2022
Published on:
Abstract
The JUNO central detector will contain a 35.4 m diameter acrylic vessel filled with 20-kt of linear alkyl benzene based scintillator, and submerged in a water pool equipped with photomultipliers to act as Cherenkov detector. The scintillation light will be read-out by 17612 20'' photomultipliers and 25600 3'' photomultipliers, reaching a geometric coverage of about 78%. On top of the main detector, a plastic scintillator tracker will complete the JUNO veto system for cosmic muons.
JUNO's ambitious design primarily aims to the determination of the neutrino mass ordering at high statistical significance ($3-4\,\sigma$ in about 6 years of data taking), by measuring the oscillation pattern of electron antineutrinos generated by two nuclear power plants, on a $\sim53$ km baseline from the experimental site. JUNO will target an unprecedented 3% energy resolution at 1 MeV scale, thus it will be a unique facility for particle and astroparticle physics. Besides its main goal, JUNO indeed aspires to the sub-percent determination of the neutrino oscillation parameters ($\sin^2 \theta_{12}$, $\Delta \mathrm{m}^2_{21}$, and $\Delta \mathrm{m}^2_{31}$) as well as to the measurement of atmospheric neutrinos, to solar neutrino precision spectroscopy, and to the detection of low-energy neutrinos coming from supernovae and geo-neutrinos.
In this contribution, the JUNO detector design and the status of the experiment construction are presented.
DOI: https://doi.org/10.22323/1.414.0577
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