Abstract
KM3NeT/ORCA is a next-generation neutrino telescope optimised for atmospheric neutrino oscillations studies. In this paper, the sensitivity of ORCA to the presence of a light sterile neutrino in a 3+1 model is presented. After three years of data taking, ORCA will be able to probe the active-sterile mixing angles θ14, θ24, θ34 and the effective angle θμe, over a broad range of mass squared difference \( \Delta {m}_{41}^2 \) ∼ [10−5, 10] eV2, allowing to test the eV-mass sterile neutrino hypothesis as the origin of short baseline anomalies, as well as probing the hypothesis of a very light sterile neutrino, not yet constrained by cosmology. ORCA will be able to explore a relevant fraction of the parameter space not yet reached by present measurements.
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The KM3NeT collaboration., Aiello, S., Albert, A. et al. Sensitivity to light sterile neutrino mixing parameters with KM3NeT/ORCA. J. High Energ. Phys. 2021, 180 (2021). https://doi.org/10.1007/JHEP10(2021)180
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DOI: https://doi.org/10.1007/JHEP10(2021)180
Keywords
- Neutrino Detectors and Telescopes (experiments)
- Oscillation