Masses and Mixings from Neutrino Beams pointing to Neutrino Telescopes

Abstract

We discuss the potential to determine leading oscillation parameters, the value and the sign of Δm^2_{31}, as well as the magnitude of \sin^2 2θ_{13} using a conventional wide band neutrino beam pointing to water or ice Cherenkov neutrino detectors known as ``Neutrino Telescopes''. We find that precision measurements of Δm^2_{31} and θ_{23} are possible and that, even though it is not possible to discriminate between charges in the detector, there is a remarkably good sensitivity to the mixing angle θ_{13} and the sign of Δm^2_{31}.