Charmless hadronic B decays at BABAR

Details Charmless hadronic B decays at BABAR Charmless hadronic B decays at BABAR

2001-11-06

arxiv.org/abs/hep-ex/0111017v1

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 4 postscript figures, submitted to EPS HEP 2001

Scientific paper

Using 22.7M BBbar events collected with the BABAR detector at SLAC, we present preliminary measurements of the branching fractions for charmless hadronic decays of B mesons into two-body, quasi two-body and three-body final states with pions, kaons, and rho and a0 resonances. In the search for exclusive $B^0 \to \pi^+\pi^-\pi^0$, we measure ${\cal B}(B^0 \to \rho^{\pm}(770)\pi^{\mp})=(28.9\pm5.4\pm4.3) \times 10^{-6}$, together with the relative asymmetry ${\cal A}_{\rm phys} = -0.04 \pm 0.18 \pm 0.02$. We also set the upper limits on $B^0 \to \rho^0(770)\pi^0$, non-resonant $B^0 \to \pi^+\pi^-\pi^0$, $B^0 \to a_0^{\pm}(\to \eta\pi^{\pm})\pi^{\mp}$ and $B^0 \to K^0\bar K^0$.

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