Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 7: Neutrino physics without accelerators II

T 7.1: Gruppenbericht

Montag, 30. März 2020, 16:30–16:50, H-HS V

Prospects, Design and Status of JUNO — •Hans Theodor Josef Steiger — Technische Universität München (TUM), Physik-Department, James-Franck-Straße 1, 85748 Garching bei München

The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton multi-purpose liquid scintillator detector currently being built in a dedicated underground laboratory in Jiangmen (PR China). Data taking is expected to start in 2021. JUNO’s main physics goal is the determination of the neutrino mass ordering using electron anti-neutrinos from two nuclear power plants at a baseline of about 53 km. JUNO aims for an unprecedented energy resolution of 3% at 1 MeV for the central detector, to be able to determine the mass ordering with 3 - 4 σ significance within six years of operation. Besides this fundamental aim, JUNO will have a very rich physics program. It includes the measurement (at a sub-percent level) of the solar neutrino oscillation parameters, the detection of low-energy neutrinos coming from galactic core-collapse supernovae, the first measurement of the diffuse supernova neutrino background, the detection of neutrinos coming from the Sun, the Earth and the Earth’s atmosphere. Moreover, JUNO will be sensitive to searches for nucleon decays and neutrinos resulting from dark matter annihilation in the Sun.
In this talk JUNO’s design, physics prospects as well as the status of its construction will be presented, together with a short excursion into its rich R&D program.