Measurement of the Branching Fraction and CP Content for the Decay B0 --> D*+ D*-

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dc.creatorThe BaBar Collaboration
dc.creatorAubert, B.
dc.date2002-03-05
dc.date.accessioned2026-07-07T12:01:44Z
dc.date.available2026-07-07T12:01:44Z
dc.descriptionWe report a measurement of the branching fraction of the decay B^0 --> D^{*+} D^{*-} and of the CP-odd component of its final state using the BaBar detector. With data corresponding to an integrated luminosity of 20.4 fb^{-1} collected at the Upsilon(4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B^0 --> D^{*+}D^{*-} with an estimated background of 6.2 \pm 0.5 events. From these events, we determine the branching fraction to be BR(B^0 --> D^{*+}D^{*-}) = (8.3 +/- 1.6(stat) +/- 1.2(syst)) x 10^{-4}. The measured CP-odd fraction of the final state is 0.22 +/- 0.18(stat) +/- 0.03(syst).
dc.description7 pages, 2 figures, submitted to PRL
dc.identifierhttps://arxiv.org/abs/hep-ex/0203008
dc.identifierhttp://arxiv.org/abs/hep-ex/0203008
dc.identifierPhys.Rev.Lett.89:061801,2002
dc.identifierdoi:10.1103/PhysRevLett.89.061801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207198
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of the Branching Fraction and CP Content for the Decay B0 --> D*+ D*-
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