Sensitivity to light sterile neutrino mixing parameters with KM3NeT/ORCA

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 ${\theta }_{14}$, ${\theta }_{24}$, ${\theta }_{34}$ and the effective angle ${\theta }_{\mu e}$, over a broad range of mass squared difference $\Delta m_{41}^2\sim [10^{-5},10]$ ${\mathrm{eV}}^2$, 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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Cited by in corpus (1)

• Probing Lorentz Invariance Violation with Atmospheric Neutrinos at INO-ICAL