Measurement of the branching fractions for B^0 -> D^{*-}pi^+ and B^0 -> D^{*-}rho^+

Details Measurement of the branching fractions for B^0 -> D^{*-}pi^+ and B^0 -> D^{*-}rho^+ Measurement of the branching fractions for B^0 -> D^{*-}pi^+ and B^0 -> D^{*-}rho^+

2000-08-23

arxiv.org/abs/hep-ex/0008051v1

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages, 7 postscript figures, contributed paper to ICHEP2000

Scientific paper

Using 5.2 fb-1 of e^+e^- annihilation data recorded with the BABAR detector at the PEP-II storage ring while operating on the Y(4S) resonance, a sample of fully reconstructed B^0 decays in the hadronic modes B^0 -> D^{*-}pi^+ and B^0 -> D^{*-}rho^+ have been reconstructed. In this paper, a study of these events is reported, including preliminary measurements of the absolute branching fractions for these modes, which are found to be B(B^0 -> D^{*-}pi^+) = (2.9+/-0.3+/-0.3) x 10^{-3} and B(B^0 -> D^{*-}rho^+) = (11.2+/-1.1+/-2.5) x 10^{-3}.

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