Baseline optimization for the measurement of CP violation, mass hierarchy, and ${\theta }_{23}$ octant in a long-baseline neutrino oscillation experiment

Abstract

Next-generation long-baseline electron neutrino appearance experiments will seek to discover CP violation, determine the mass hierarchy and resolve the ${\theta }_{23}$ octant. In light of the recent precision measurements of ${\theta }_{13}$, we consider the sensitivity of these measurements in a study to determine the optimal baseline, including practical considerations regarding beam and detector performance. We conclude that a detector at a baseline of at least 1000 km in a wide-band muon neutrino beam is the optimal configuration.

Comments: 21 pages, 26 figures, 4 tables