Measurement of the neutrino mixing angle ${\theta }_{23}$ in NOvA

The NOvA Collaboration, P. Adamson, L. Aliaga +177

This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of $6.05\times 10^{20}$ protons-on-target from the NuMI beam a…