We report on the inclusive branching fractions of B- and of B̅ 0 mesons decaying to D0X, D̅ 0X, D+X, D-X, Ds+X, Ds-X, Λc+X, Λ̅ c-X, based on a sample of 88.9×10^6 BB̅ events recorded with the BABAR detector at the Υ(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charmed particle in the rest of the event. We measure the number of charmed and of anticharmed particles per B decay and derive the total charm yield per B- decay nc-=1.313±0.037±0.062-0.042+0.063 and per B̅ 0 decay nc0=1.276±0.062±0.058-0.046+0.066, where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties.

Measurement of the branching fractions for inclusive B- and B̅ 0 decays to flavor-tagged D, Ds, and Λc

MARGONI, MARTINO;SIMONETTO, FRANCO;STROILI, ROBERTO;VOCI, CESARE;SIMI, GABRIELE;
2004

Abstract

We report on the inclusive branching fractions of B- and of B̅ 0 mesons decaying to D0X, D̅ 0X, D+X, D-X, Ds+X, Ds-X, Λc+X, Λ̅ c-X, based on a sample of 88.9×10^6 BB̅ events recorded with the BABAR detector at the Υ(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charmed particle in the rest of the event. We measure the number of charmed and of anticharmed particles per B decay and derive the total charm yield per B- decay nc-=1.313±0.037±0.062-0.042+0.063 and per B̅ 0 decay nc0=1.276±0.062±0.058-0.046+0.066, where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2445749
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