Search for neutrinoless decays τ->-bar hh

We have searched for neutrinoless τ lepton decays into one electron or niuon and two charged pion or kaon using a 158 fb-1 data sample collected with the Belle detector at the KEKB e+e- collider. Since the number of signal candidate events is compatible with the expected background, we set 90% confidence level upper limits on the branching fractions in the range (2.2 -15.5) x 10-7 for various decay modes τ->-bar hh where -bar and h represent e or μ and π+/- or K+/-, respectively