Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 55: Neutrinophysik III

T 55.2: Group Report

Wednesday, March 27, 2019, 16:20–16:40, H05

The Jiangmen Underground Neutrino Observatory — •Michaela Schever for the JUNO collaboration — IKP-2, Forschungszentrum Jülich — III. Physikalisches Institut, RWTH Aachen University

The Jiangmen Underground Neutrino Observatory (JUNO) is a next generation multi-purpose antineutrino detector currently under construction in Jiangmen, China. The central detector contains 20 kton of liquid scintillator and is equipped with  18,000 20 inch and  25,000 3 inch PMTs. The surrounding water pool serves as Cherenkov veto detector allowing muon track reconstruction for a partial volume veto of the central detector. Measuring reactor antineutrinos of two powerplants at a baseline of 53 km, the unprecedented design energy resolution is 3% at 1 MeV. The main physics goal is to determine the neutrino mass hierarchy within six years of run time with a significance of 3-4 sigma. Additional physics goals are the precise measurement of the solar neutrinos, geo-neutrinos, supernova burst neutrinos, the diffuse supernova neutrino background as well as the search for proton decays. Data taking is expected to start in 2021. This talk reviews the current status of the project and the physics goals. Furthermore, the contributions of the German collaboration groups are summarized.