Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 84: Methods of astroparticle physics V

T 84.4: Talk

Thursday, April 2, 2020, 17:15–17:30, L-3.001

Geometry calibration of the KM3NeT neutrino telescope using atmospheric muons — •Daniel Guderian and Alexander Kappes for the KM3NeT collaboration — Institut für Kernphysik, Wilhelm-Klemm-Straße 9, Münster

The KM3NeT neutrino telescope consists of a network of large volume Cherenkov detectors at the bottom of the Mediterranean Sea designed to search for neutrino interactions in the water. With its two sites ORCA (optimized for GeV energies) and ARCA (optimized for TeV-PeV energies) under construction, it will allow to determine the neutrino mass hierarchy and detect neutrinos from powerful astrophysical objects. With continuous deployment of sensors and the recent start of data analysis, detector calibration has become a critical task. This contribution reports on the status of a calibration method which uses reconstructed tracks of atmospheric muons to evaluate the detector geometry and timing. In particular, comparisons to time and position calibration methods using dedicated hardware devices will be shown and the added value of this alternative, purely data-driven approach will be discussed.