Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131428
Title: | Study of inclusive B− and ¯B0 decays to flavor-tagged D, Ds, and Λ+c |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 16-Apr-2007 |
Publisher: | American Physical Society |
Abstract: | We report on a study of inclusive B − and ¯¯¯ B 0 meson decays to D 0 X , ¯¯¯ D 0 X , D + X , D − X , D + s X , D − s X , Λ + c X , ¯¯¯ Λ − c X , based on a sample of 231 × 10 6 B ¯¯¯ B events recorded with the BABAR detector at the Υ ( 4 S ) 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 − decay, n − c = 1.208 ± 0.023 ± 0.040 + 0.035 − 0.029 , and per ¯¯¯ B 0 decay, n 0 c = 1.203 ± 0.030 ± 0.034 + 0.044 − 0.035 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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.75.072002 |
It is part of: | Physical Review D, 2007, vol. 75, num. 7, p. 072002 |
URI: | http://hdl.handle.net/2445/131428 |
Related resource: | https://doi.org/10.1103/PhysRevD.75.072002 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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551677.pdf | 1.01 MB | Adobe PDF | View/Open |
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