Physics reach of the ESSnuSB experiment

ESSnuSB is a unique future proposed long-baseline experiment in Sweden to study neutrino oscillation by probing the second oscillation maximum. In this proceeding, we update the flux and efficiencies and re-calculate the sensitivity of ESSnuSB in the standard three flavour scenario. We find that it has excellent sensitivity to the Dirac CP phase $δ_{\rm CP}$, moderate sensitivity to the mass hierarchy of the neutrinos and limited sensitivity to measure the octant of the atmospheric mixing angle $θ_{23}$. We also find that it has a very good sensitivity to constrain the atmospheric mass squared difference $|Δm^2_{31}|$.

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