Inclusive Semileptonic B Decays at BABAR
We present measurements of the inclusive semileptonic branching fractions of charged and neutral B mesons using 20.6 fb{sup -1} of data measured at the {Upsilon}(4S) with the BABAR detector. Events are tagged with a fully reconstructed hadronic decay of a B meson. The correlation between the flavor of the tag B meson and the electron charge allows the separation of prompt semileptonic B decays and cascade semileptonic charm decays. We obtain the preliminary inclusive semileptonic branching fraction of charged B mesons b{sub +} = 0.103 {+-} 0.006 {+-} 0.005, neutral B mesons b{sub 0} = 0.104 {+-} 0.008 {+-} 0.005, their average b = 0.104 {+-} 0.005 {+-} 0.004, and their ratio b{sub +}/b{sub 0} = 0.99 {+-} 0.10 {+-} 0.03.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 799031
- Report Number(s):
- SLAC-PUB-9037; TRN: US0205170
- Resource Relation:
- Other Information: PBD: 3 Apr 2002
- Country of Publication:
- United States
- Language:
- English
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