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 data were collected between January 2020 and November 2021 and correspond to 510 days of livetime, with a total exposure of 433 kton·years. Using machine 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.

Measurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCA / Null, N., Aiello, S., Albert, A., Alhebsi, A.R., Alshamsi, M., Alves Garre, S., Ambrosone, A., Ameli, F., Andre, M., Aphecetche, L., Ardid, M., Ardid, S., Aublin, J., Badaracco, F., Bailly-Salins, L., Bardačová, Z., Baret, B., Bariego-Quintana, A., Becherini, Y., Bendahman, M., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 85:8(2025), pp. 1-11. [10.1140/epjc/s10052-025-14513-2]

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

Ameli, F.;Capone, A.;Celli, S.;Di Palma, I.;Gagliardini, S.;Mastrodicasa, M.;Nicolau, C. A.;Popa, V.;Tudorache, A.;Veutro, A.;Zegarelli, A.;
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 data were collected between January 2020 and November 2021 and correspond to 510 days of livetime, with a total exposure of 433 kton·years. Using machine 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
neutrinos; mass oscillation; KM3NeT
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCA / Null, N., Aiello, S., Albert, A., Alhebsi, A.R., Alshamsi, M., Alves Garre, S., Ambrosone, A., Ameli, F., Andre, M., Aphecetche, L., Ardid, M., Ardid, S., Aublin, J., Badaracco, F., Bailly-Salins, L., Bardačová, Z., Baret, B., Bariego-Quintana, A., Becherini, Y., Bendahman, M., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 85:8(2025), pp. 1-11. [10.1140/epjc/s10052-025-14513-2]
File allegati a questo prodotto
File Dimensione Formato  
Aiello_Measurement _2025.pdf

accesso aperto

Note: Articolo su rivista
Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 1.1 MB
Formato Adobe PDF
1.1 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1765665
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact