Colloquium/Symposium

Special Seminar: "Measuring neutrino oscillations with ORCA, Super-ORCA and DUNE" by Jannik Hofestaedt (Erlangen)

Thursday, 23 January 2020 from to (Europe/Amsterdam)
at Nikhef ( H331 )
Description
Since the discovery of neutrino flavour oscillations about 20 years ago, a variety of experiments have established the 3-nu picture, and most of the oscillation parameters are known with reasonable precision. Among the unknowns are the ordering of the three neutrino mass states and the Dirac CP-violating phase delta_CP. Next-generation neutrino oscillation experiments will determine these parameters with different experimental approaches, including deep-sea Cherenkov detectors and liquid argon time-projection chambers (LArTPCs) measuring GeV-scale atmospheric and beam neutrinos. KM3NeT/ORCA is a deep-sea Cherenkov detector currently being constructed at the bottom of the Mediterranean Sea. It will determine the neutrino mass ordering by measuring the oscillation pattern of atmospheric neutrinos. A possible future, more densely instrumented extension, called Super-ORCA, will allow to measure delta_CP with atmospheric neutrinos and a proposed long-baseline neutrino beam from Protvino in Russia. The upcoming DUNE experiment will employ LArTPCs serving as far detector in a long-baseline neutrino beam from Fermilab to perform oscillation measurements with world-leading precision. In the talk, I will lay out the experimental scene of neutrino oscillation measurements with ORCA, SuperORCA and DUNE. I will discuss the experimental and detector-related challenges of the neutrino detection and event reconstruction, and the expected sensitivities to measure the neutrino mass ordering and delta_CP.