Baseline Optimization for the Measurement of CP Violation, Mass Hierarchy, and $\theta_{23}$ Octant in a Long-Baseline Neutrino Oscillation Experiment

The goals of next-generation neutrino experiments include searching for CP violation in the lepton sector and precision studies of the neutrino mixing matrix. These measurements require an optimal combination of the experimental baseline (the distance between the neutrino source and detector) and the neutrino beam energy. In this paper, we study the baseline optimization for a longbaseline neutrino experiment, assuming a wide-band neutrino beam originating from the Fermilab proton complex.