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 $\hat{I}{½}_e\to \hat{I}{½}_{\ddot{I}}„$ oscillations, and measuring CP violation with either $\hat{I}{½}_e\to \hat{I}{½}_{\hat{I}}¼$ or $\hat{I}{½}_{\hat{I}}¼\to \hat{I}{½}_{\ddot{I}}„$ oscillations (including the corresponding antineutrino channels). With measurements of CP violation in both $\hat{I}{½}_e\to \hat{I}{½}_{\hat{I}}¼$ and $\hat{I}{½}_{\hat{I}}¼\to \hat{I}{½}_{\ddot{I}}„$ it may be possible to distinguish between the three- and four-neutrino cases.

16 pages, Revtex (single-spaced), 8 postscript figures, uses epsf.sty