Multi-ring signatures of the oscillation nu_mu --> nu_e in a water Cherenkov detector

Abstract

Multiring signatures of the oscillation nu_mu --> nu_e are formulated for a water Cherenkov detector. These are appropriate for relatively high neutrino energies (over 2 GeV) that emphasize the matter effect and, therefore, may allow to measure the sign of the atmospheric mass-squared difference.

17 pages, 6 figures