Measurement of the atmospheric $ν_μ$ flux with six detection units of KM3NeT/ORCA
Fuente:
arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912322393473024 |
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| author | KM3NeT Collaboration |
| author_facet | KM3NeT Collaboration |
| contents | A measurement of the atmospheric $ν_μ+\barν_μ$ flux with energies between 1--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$\cdot$years. Using machine learning classification, 3894 neutrino candidate events have been selected with an atmospheric muon contamination of less than 1$\%$. The atmospheric $ν_μ+\barν_μ$ energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric $ν_μ+\barν_μ$ flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_09119 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Measurement of the atmospheric $ν_μ$ flux with six detection units of KM3NeT/ORCA KM3NeT Collaboration High Energy Physics - Experiment A measurement of the atmospheric $ν_μ+\barν_μ$ flux with energies between 1--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$\cdot$years. Using machine learning classification, 3894 neutrino candidate events have been selected with an atmospheric muon contamination of less than 1$\%$. The atmospheric $ν_μ+\barν_μ$ energy spectrum is derived using an unfolding procedure and the impact of systematic uncertainties is estimated. The atmospheric $ν_μ+\barν_μ$ flux measured using the ORCA6 configuration is in agreement with the values measured by other experiments. |
| title | Measurement of the atmospheric $ν_μ$ flux with six detection units of KM3NeT/ORCA |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2504.09119 |