High-Statistics Study of the tau^- -> pi^- pi^0 nu_tau Decay

M. Fujikawa, H. Hayashii, S. Eidelman

We report a high-statistics measurement of the branching fraction for tau^- --> pi^- pi^0 nu_tau and the invariant mass spectrum of the produced pi^- pi^0 system using 72.2 fb^-1 o…