Investigation of $B \rightarrow D^{(*)}\bar D^{(*)}K$ decays with the BABAR detector

Abstract : Using about 23M $B \overline B$ events collected in 1999-2000 with the BABAR detector, we report the observation of several hundred $B \to D^{(*)}\overline D^{(*)}K$ decays with two completely reconstructed D mesons. The preliminary branching fractions of the low background decay modes $B^0\to D^{*-}D^{(*)0}K^+$ are determined to be ${\cal B}(B^0 \to D^{*-}D^{0}K^+) = (2.8 \pm 0.7 \pm 0.5)\times 10^{-3}$ and ${\cal B}(B^0 \to D^{*-}D^{*0}K^+) = (6.8 \pm 1.7 \pm 1.7)\times 10^{-3}$. Observation of a significant number of candidates in the color-suppressed decay mode $B^+\to D^{*+}D^{*-}K^+$ is reported with a preliminary branching fraction ${\cal B}(B^+\to D^{*+}D^{*-}K^+)= (3.4\pm 1.6\pm 0.9)\times 10^{-3}.$
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Conference papers
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Submitted on : Friday, May 3, 2002 - 11:16:37 AM
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Citation

B. Aubert, D. Boutigny, J.M. Gaillard, A. Hicheur, Y. Karyotakis, et al.. Investigation of $B \rightarrow D^{(*)}\bar D^{(*)}K$ decays with the BABAR detector. International Symposium on Lepton and Photon Interactions at High Energies 20 Lepton Photon 01, Jul 2001, Rome, Italy. pp.1-18. ⟨in2p3-00011476⟩

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