2006/06/12 by The BABAR Collaboration, B. Aubert, R. Barate +98 · 18 citations
Physics and Astronomy · #Bar (unit) #Branching fraction #Charm (quantum number) #High-Energy Particle Collisions Research #Lambda #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevd.75.072002
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 75(7) (American Physical Society) · 16 pages, 24 postscript figues, submitted to PRD
arxiv created 2006/06/12 · openalex publication_date 2007/04/16 · arxiv updated 2010/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We report on a study of inclusive B^\ensuremath- and B0 meson decays to D0X, D0X, D+X, D^\ensuremath-X, Ds+X, Ds^\ensuremath-X, \mathit\ensuremathΛc+X, \mathit\ensuremathΛc^\ensuremath-X, based on a sample of 231\ifmmode×\else\texttimes\fi106 BB events recorded with the BABAR detector at the \mathit\ensuremathΥ(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anticharm particles per B decay, separately for charged and neutral parents. We derive the total charm yield per B^\ensuremath- decay, nc^\ensuremath-=1.208\ifmmode±\else\textpm\fi0.023\ifmmode±\else\textpm\fi0.040_\ensuremath-0.029+0.035, and per B0 decay, nc0=1.203\ifmmode±\else\textpm\fi0.030\ifmmode±\else\textpm\fi0.034_\ensuremath-0.035+0.044 where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the B rest frame.