A search for ν→ν oscillations using the NOMAD detector

Abstract

NOMAD is a neutrino oscillation experiment designed to search for ντ appearance in the CERN-SPS wide band νμ beam. Signal detection relies on the identification of ντ charged current interactions using kinematic criteria. The analysis of the 1995 data sample yields no oscillation signal. Combining all studied τ decay modes, a limit of sin22θμτ<4.2×10−3 is obtained for large Δm2 at the 90% confidence level.