Measurement of the Branching Fraction for Inclusive Semileptonic B Meson Decays
A largely model-independent measurement of the inclusive electron momentum spectrum and branching fraction for semileptonic decays of B mesons is presented based on data recorded at the {Upsilon}(4S) resonance with the BABAR detector. Backgrounds from secondary charm decays are separated from prompt B decays using charge and angular correlations between the electron from one B meson and a high momentum electron tag from the second B meson. The resulting branching fraction is {Beta}(B {yields} Xe{nu}) = (10.87 {+-} 0.18(stat) {+-} 0.30(syst))%. Based on this measurement we determine the CKM matrix element |V{sub cb}|.
- 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:
- 799957
- Report Number(s):
- SLAC-PUB-9306; TRN: US200308%%448
- Resource Relation:
- Other Information: PBD: 13 Aug 2002
- Country of Publication:
- United States
- Language:
- English
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