Atmospheric neutrinos from the first KM3NeT/ORCA data and prospects for measuring the atmospheric neutrino flux

KM3NeT is a research infrastructure aiming to study astrophysical sources as well as to perform particle physics studies, through the detection of neutrinos in the abyssal depths of the Mediterranean Sea. The KM3NeT/ORCA detector (Oscillation Research with Cosmics in the Abyss), currently under cons...

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Bibliographic Details
Published in:Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
Main Authors: Stavropoulos, Dimitris, Pestel, Valentin, Aly, Zineb, Tzamariudaki, Ekaterini, Markou, Christos, Bozza, Cristiano
Other Authors: Keilhauer, Bianca, Stavropoulos, Dimitri, Markou, Christo
Format: Conference Object
Language:English
Published: SISSA 2022
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Online Access:https://hdl.handle.net/11386/4877715
https://doi.org/10.22323/1.395.1125
https://pos.sissa.it/395/1125/
Description
Summary:KM3NeT is a research infrastructure aiming to study astrophysical sources as well as to perform particle physics studies, through the detection of neutrinos in the abyssal depths of the Mediterranean Sea. The KM3NeT/ORCA detector (Oscillation Research with Cosmics in the Abyss), currently under construction, is deployed at 2450 m depth near Toulon, France. It consists of vertical structures (Detection Units) equipped with spherical Digital Optical Modules, each hosting a set of photomultiplier tubes capable of detecting neutrino events from the Cherenkov radiation induced by the daughter particles. In this contribution, an analysis of data collected with the first 6 Detection Units (ORCA6) leading to a sample of atmospheric neutrino events is described. The angular resolution and the energy reconstruction performance for this event selection, which is a key factor for measuring the atmospheric neutrino flux, are also presented.