Abstract
The JUNO (Jiangmen Underground Neutrino Observatory), a 20 kton multi-purpose underground liquid scintillator detector, has been proposed and approved for realization in the south of China. After an intense design phase, the overall concept of the structure of the detector has been finalized, paving the way towards the construction of the several components and subsystems, which will compose it. Meanwhile, the excavation of the site which will host the experiment has been started and is rapidly progressing. The main physics target of JUNO is the determination of the neutrino mass hierarchy, which will be accessible through the measurement of the antineutrino spectrum from two high power nuclear complexes under installation 53 km away from the experimental site. In this work, after the description of the broad physics capabilities of the experiment, which include in addition to the crucial measure of the neutrino hierarchy the high precision determination of three oscillation parameters, as well as a rich astroparticle program, I illustrate the technical characteristics of the detector, with particular emphasis on the technological challenges which are being addressed along the path towards its realization.
Highlights
In the global context of the future neutrino oscillation studies, the JUNO detector [1] will play a central role on two aspects: the determination of mass hierarchy and the precise measurements of the solar oscillation parameters, i.e., as well as of the atmospheric squared mass differenceJUNO is designed and realized as a huge liquid scintillator detector, exploiting a mature and well proved technology, which has already provided fundamental contributions to the neutrino oscillation study through several implementations (Borexino [2], KamLAND [3], Daya Bay [4], Reno [5] and Double Chooz [6] being the most recent examples)
In this work I describe first the broad physics capabilities of the experiment, which include the crucial measure of the neutrino mass hierarchy, the high precision determination of three oscillation parameters, and a rich astroparticle program
The program will be complemented by an ensemble of astroparticle physics measurements, which will significantly enhance the physics potential of JUNO
Summary
In the global context of the future neutrino oscillation studies, the JUNO detector [1] will play a central role on two aspects: the determination of mass hierarchy and the precise measurements of the solar oscillation parameters, i.e. JUNO is designed and realized as a huge liquid scintillator detector, exploiting a mature and well proved technology, which has already provided fundamental contributions to the neutrino oscillation study through several implementations (Borexino [2], KamLAND [3], Daya Bay [4], Reno [5] and Double Chooz [6] being the most recent examples) It will base its measurements on the detection of the global antineutrino flux coming from the cores of two nearby nuclear complexes, Yangjiang and Taishan, located at about 53 km from the experimental site. The program will be complemented by an ensemble of astroparticle physics measurements, which will significantly enhance the physics potential of JUNO
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