ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

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

NázevTitle
Measurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCAMeasurement of the atmospheric νμ flux with six detection units of KM3NeT/ORCA
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
N. Zywucka, J. Zúñiga, J.D. Zornoza, D. Zito, I. Štekl, Y. Shitov, F. Mamedov, Ľ. Krupa, E. Eckerová, Z. Bardacova
Klíčová slovaKeywords
atmospheric muon, Energy spectrum, Machine learning classification, neutrino candidate events
ExperimentCollaboration
KM3NeT
DOIDOI
10.1140/epjc/s10052-025-14513-2
Časopis / citaceJournal / citation
The European Physical Journal C 85(8), 871 (2025) · ISSN 1434-6044
RokYear
2025
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
CitovánoCited by
4 (INSPIRE-HEP)
2026: 4
Plný text (open access)Full text (open access)
https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14513-2.pdf
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

A measurement of the atmospheric νμ+ν¯μ 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+ν¯μ energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric νμ+ν¯μ flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments.

A measurement of the atmospheric νμ+ν¯μ 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+ν¯μ energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric νμ+ν¯μ flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments.

↑ NahoruTop