A search for νμ β ντ oscillations using the NOMAD detector

This talk presents the current status of the search for νμ ↔ ντ oscillations with the NOMAD detector. Significant progress has been made with respect to our published results. The analysis techniques have been improved and a larger data sample, corresponding to the 1995-1997 runs has been used. The search yields no evidence of the presence of oscillations. The updated limit on the neutrino oscillation mixing angle is sin2 2θμτ < 1.2 x 10-3, in the limit of large Δm2