Abstract
In the era of precision measurements of the neutrino oscillation parameters, upcoming neutrino experiments will also be sensitive to physics beyond the Standard Model. KM3NeT/ORCA is a neutrino detector optimised for measuring atmospheric neutrinos from a few GeV to around 100 GeV. In this paper, the sensitivity of the KM3NeT/ORCA detector to neutrino decay has been explored. A three-flavour neutrino oscillation scenario, where the third neutrino mass state ν3 decays into an invisible state, e.g. a sterile neutrino, is considered. We find that KM3NeT/ORCA would be sensitive to invisible neutrino decays with 1/α3 = τ3/m3< 180 ps/eV at 90% confidence level, assuming true normal ordering. Finally, the impact of neutrino decay on the precision of KM3NeT/ORCA measurements for θ23, Δm312 and mass ordering have been studied. No significant effect of neutrino decay on the sensitivity to these measurements has been found. [Figure not available: see fulltext.]
Original language | English |
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Article number | 90 |
Number of pages | 25 |
Journal | Journal of High Energy Physics |
Volume | 2023 |
Issue number | 4 |
Publication status | Published - Apr 2023 |
Bibliographical note
Publisher Copyright:© 2023, The Author(s).
Open Access - Access Right Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) (https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.Keywords
- Neutrino Detectors and Telescopes (experiments)
- Beyond Standard Model
- Oscillation