Observation of B^0 \to D^{*-} τ^+ ν_τ decay at Belle

A. Matyja, M. Rozanska

We report an observation of the decay $B^0\to D^{\ast -}{\tau }^{+}{\nu }_{\tau }$ in a data sample containing $535\times 10^6$ $B\bar{B}$ pairs collected with the Belle detector at the KEKB asymmetric-…