Potential of octant degeneracy resolution in JUNO

Abstract

This research continues to focus on the idea using cyclotronic antineutrino source for purposes of neutrino physics. Long baseline experiments suffer from degeneracies and correlations between $\Theta_{23}$, $\delta_{\rm CP}$ and the mass hierarchy (MH). However the combination of a superconductive cyclotron and a big liquid scintillator detector like JUNO in a medium baseline experiment, which does not depend on the MH, may allow us to determine whether the position of the mixing angle $\Theta_{23}$ is in the lower octant (LO) or upper octant (UO). Such an experiment would improve the precision of the $\Theta_{23}$ measurement to a degree which depends on the CP-phase.