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 88.9×106 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
PERUZZI, Ida Marena;BIASINI, Maurizio
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 88.9×106 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 uncertaintiesI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
