Measurement of the atmospheric Muon neutrino [nu mu] flux with six detection units of KM3NeT/ORCA
[EN] A measurement of the atmospheric nu(mu) + (nu) over bar (mu) 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 2...
| Autores: | , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/231234 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/231234 |
| Access Level: | acceso abierto |
| Palabra clave: | Atmospheric neutrinos Muon neutrino flux KM3NeT/ORCA Machine learning Unfolding analysis Neutrino astronomy |
| Sumario: | [EN] A measurement of the atmospheric nu(mu) + (nu) over bar (mu) 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 nu(mu) + (nu) over bar (mu) energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric nu(mu) + (nu) over bar (mu) flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments. |
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