Short-Baseline Neutrino Oscillations at a Neutrino Factory

Abstract

Within the framework of three-neutrino and four-neutrino scenarios that can describe the results of the LSND experiment, we consider the capabilities of short baseline neutrino oscillation experiments at a neutrino factory. We find that, when short baseline ($L \alt 100$ km) neutrino factory measurements are used together with other accelerator-based oscillation results, the complete three-neutrino parameter space can best be determined by measuring the rate of $ν_e \to ν_τ$ oscillations, and measuring CP violation with either $ν_e \to ν_μ$ or $ν_μ\to ν_τ$ oscillations (including the corresponding antineutrino channels). With measurements of CP violation in both $ν_e \to ν_μ$ and $ν_μ\to ν_τ$ it may be possible to distinguish between the three- and four-neutrino cases.