Measurement of the decay $B^0\to {\pi }^{-}{\ell }^{+}\nu$ and determination of $|V_{ub}|$

H. Ha, E. Won, I. Adachi +140

We present a measurement of the charmless semileptonic decay $B^0\to {\pi }^{-}{\ell }^{+}\nu$ using a data sample containing 657$\times 10^6$ $B\bar{B}$ events collected with the Belle detector…