Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 78: Invited Topical Talks 4

T 78.3: Invited Topical Talk

Thursday, March 7, 2024, 12:00–12:30, Geb. 30.22: Gaede-HS

New Chapter in Neutrino Physics with JUNO — •Yury Malyshkin — GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291, Darmstadt, Germany — Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße, 52428, Jülich, Germany

The phenomenon of neutrino oscillations is being studied by various experiments around the world, leading to a more precise understanding of the neutrino properties and enabling to use these particles as a tool to investigate natural objects, either via their neutrino emission or via their transparency to neutrinos. However, several basic neutrino characteristics are still to be clarified. In JUNO (Jiangmen Underground Neutrino Observatory, South China) electron antineutrinos produced in two powerful nuclear power plants will be observed in a spherical target, 35.4 m in diameter, filled with 20 kton of liquid scintillator. The light produced after neutrino interaction will be collected by 17,612 20-inch and 25,600 3-inch photo-multiplier tubes covering 78% of the target surface, enabling measuring neutrino energy with unprecedented resolution. The talk will explain how this apparatus is going to resolve the neutrino mass ordering, measure three out of the six independent parameters driving the neutrino oscillations with a sub-percent precision, and how JUNO can serve as an observatory for neutrinos coming from the atmosphere and the interior of the Earth, from the Sun, and from the supernova explosions. The talk will also cover the status of JUNO construction which is planned to be accomplished already in the second half of 2024.

Keywords: neutrino; neutrino oscillations; liquid scintillator detector; reactor neutrino