2019/07/30 by J. Hofestädt, Hofestädt, Jannik, Marc Bruchner +3
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Instrumentation and Detectors (physics.ins-det) #Neutrino Physics Research #Radiation Detection and Scintillator Technologies
paper · pdf · doi:10.48550/arxiv.1907.12983
openalex publication_date 2019/07/30 · openalex created_date 2022/07/28 · openalex updated_date 2026/07/28
Studying the atmospheric neutrino oscillation probabilities below 2 GeV with\na multi-megaton Cherenkov detector allows for a measurement of the leptonic\nCP-phase \δCP. The most relevant CP-sensitive energy range is below\nthe neutrino detection threshold of KM3NeT/ORCA, which is an underwater\nCherenkov detector optimised to determine the neutrino mass ordering by\nmeasuring the oscillation pattern of 3-30 GeV atmospheric neutrinos. With\nSuper-ORCA, a \∼ 10 times more-densely instrumented version of ORCA, the\ndetection threshold can be lowered and the event reconstruction capabilities\nimproved.\n In this paper, the key detector performance indicators for a possible\nSuper-ORCA detector and the sensitivity to \δCP with atmospheric\nneutrinos are presented. Including systematics, a 1\σ-resolution on\n\δCP of about 38^\∘ (23^\∘) is achieved for \δCP=0\n(\δCP=\π/2) after 10 years. In addition, the potential of using a\nneutrino beam from the Protvino accelerator facility to the Super-ORCA detector\nis discussed. With this, a 1\σ-resolution on \δCP of about\n10^\∘ (16^\∘) is achieved for \δCP=0 (\δCP=\π/2)\nafter 10 years.\n