Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 17: Neutrino Astronomy I

T 17.2: Talk

Monday, March 15, 2021, 16:20–16:35, Tq

Studying optical water properties with atmospheric muon events in KM3NeT/ORCA — •Martin Schneider for the ANTARES-KM3NeT-Erlangen collaboration — Friedrich-Alexander-Universität Erlangen-Nürnberg, ECAP

The KM3NeT neutrino detectors are currently under construction in the deep Mediterranean Sea. ORCA, the low-energy part of KM3NeT, is an underwater Cherenkov neutrino detector featuring a dense configuration of optical modules designed for the measurement of atmospheric neutrinos down to the low GeV energy regime. A very large sample of atmospheric muon events has already been recorded and can be used to study the detector performance. Located in a deep-sea environment, the detector performance depends on the optical water properties.

In this talk, atmospheric muon events are used to study the optical water properties with the ORCA detector. The focus is on the comparison between data and Monte-Carlo simulations with respect to the attenuation length.