A measurement of the atmospheric νμ + ¯νμ flux with energies between 1 and 100 GeV is presented. The measurement has been performed using data taken with the first six detection units of the KM3NeT/ORCA detector, referred to as ORCA6. The datawere collected between January 2020 and November 2021 and correspond to 510 days of livetime, with a total exposure of 433 kton·years. Usingmachine learning classification, 3894 neutrino candidate events have been selected with an atmospheric muon contamination of less than 1%. The atmospheric νμ+¯νμ energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric νμ+¯νμ flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments.

Aiello, S., Albert, A., Alhebsi, A.R., Alshamsi, M., Alves Garre, S., Ambrosone, A., et al. (2025). Measurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCA. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 85(8), 1-11 [10.1140/epjc/s10052-025-14513-2].

Measurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCA

F. Benfenati Gualandi;F. Carenini;P. Castaldi;I. Del Rosso;F. Filippini;G. Levi;A. Margiotta;M. Spurio;
2025

Abstract

A measurement of the atmospheric νμ + ¯νμ flux with energies between 1 and 100 GeV is presented. The measurement has been performed using data taken with the first six detection units of the KM3NeT/ORCA detector, referred to as ORCA6. The datawere collected between January 2020 and November 2021 and correspond to 510 days of livetime, with a total exposure of 433 kton·years. Usingmachine learning classification, 3894 neutrino candidate events have been selected with an atmospheric muon contamination of less than 1%. The atmospheric νμ+¯νμ energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric νμ+¯νμ flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments.
2025
Aiello, S., Albert, A., Alhebsi, A.R., Alshamsi, M., Alves Garre, S., Ambrosone, A., et al. (2025). Measurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCA. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 85(8), 1-11 [10.1140/epjc/s10052-025-14513-2].
Aiello, S.; Albert, A.; Alhebsi, A. R.; Alshamsi, M.; Alves Garre, S.; Ambrosone, A.; Ameli, F.; Andre, M.; Aphecetche, L.; Ardid, M.; Ardid, S.; Aubl...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1022975
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