Measurements of B^0 decays to pi^+pi^-pi^0
Abstract
Description
We present preliminary results of searches for exclusive $B^0$ decays to $π^+π^-π^0$ among 22.7 million $b\bar{b}$ pairs collected by the BABAR experiment from electron-positron collisions near the $Υ(4S)$ resonance. We measure $\cal{B}(ρ^\mp π^\pm) = (28.9\pm 5.4\pm 4.3)\times 10^{-6}$, and find no evidence for the presence of any other decay mode in the $π^+π^-π^0$ Dalitz plot. Upper limits are determined for the branching fractions of $B^0\toρ^0π^0$, non-resonant $B^0$ decays to $π^+π^-π^0$ and of several discrete regions of $π^+π^-π^0$ phase-space. We also measure the direct CP-violating asymmetry between the rates of untagged $ρ^+π^-$ and $ρ^-π^+$, finding no significant evidence for an effect.
10 pages, 3 figures, conference paper submitted to LP01
10 pages, 3 figures, conference paper submitted to LP01