A method for detecting $\nu_\tau$ appearance in the spectra of quasielastic CC events

Abstract

A method for detecting the transition \omutau in long-baseline accelerator experiments, that consists in comparing the far-to-near ratios of the spectra of quasielastic CC events generated by high- and low-energy beams of muon neutrinos, is proposed. The test may be accessible to big water Cherenkov detectors and iron--scintillator calorimeters, and is limited by statistics rather than systematics.Comment: 10 pages, 4 figure