We propose a new method for measuring CP violation in neutrino oscillation
experiments. The idea is to isolate the term due to the CP-violating phase out
of the oscillation probability by taking difference between yields of two (or
three) detectors at path-lengths L=250(1.35GeVEβ)(10β2eV2Ξm2β)β1km and at L/3 (and also at 2L/3 in the case of
three detectors). We use possible hierarchies in neutrino masses suggested by
the astrophysical and the cosmological observations to motivate the idea and to
examine how the method works.Comment: RevTex, 17 pages including 4 ps figure