Speaker
Description
The neutrino mass ordering (NMO) is one of the fundamental questions in neutrino physics. KM3NeT/ORCA and JUNO are two neutrino oscillation experiments both aiming at measuring the NMO with different approaches: ORCA with atmospheric neutrinos transversing matter/Earth and JUNO with reactor neutrinos. This talk presents the potential of determining the NMO through a combined analysis of JUNO and ORCA data. In a joint fit, the NMO sensitivity is enhanced beyond the simple sum of the sensitivities of each experiment due to the tension between their $\Delta m_{31}^2$ best fit in a wrong ordering assumption. From this analysis, we expect to determine the true NMO with $5~\sigma$ significance after $1~-~2$ years of data taking by both experiments for the current global best-fit values of the oscillation parameters, while maximally 6 years will be needed for any other parameter set.
| Collaboration name | KM3NeT |
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