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
νe​→ντ​ oscillations, and measuring CP violation with either
νe​→νμ​ or νμ​→ντ​ oscillations (including the
corresponding antineutrino channels). With measurements of CP violation in both
νe​→νμ​ and νμ​→ντ​ it may be possible to
distinguish between the three- and four-neutrino cases.Comment: 16 pages, Revtex (single-spaced), 8 postscript figures, uses epsf.st