Journal
PHYSICAL REVIEW D
Volume 85, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.85.011101
Keywords
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Funding
- DOE (USA)
- NSF (USA)
- NSERC (Canada)
- CEA (France)
- CNRS-IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- INFN (Italy)
- FOM (The Netherlands)
- NFR (Norway)
- MES (Russia)
- MICIIN (Spain)
- STFC (United Kingdom)
- Marie Curie EIF (European Union)
- A. P. Sloan Foundation (USA)
- Binational Science Foundation (USA-Israel)
- STFC [ST/K001418/1] Funding Source: UKRI
- Division Of Physics
- Direct For Mathematical & Physical Scien [0969487] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/K001418/1] Funding Source: researchfish
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We report a measurement of the inclusive semileptonic branching fraction of the B-s meson using data collected with the BABAR detector in the center-of-mass energy region above the Y(4S) resonance. We use the inclusive yield of phi mesons and the phi yield in association with a high-momentum lepton to perform a simultaneous measurement of the semileptonic branching fraction and the production rate of B-s mesons relative to all B mesons as a function of center-of-mass energy. The inclusive semileptonic branching fraction of the B-s meson is determined to be B(B-s -> l nu X) = 9.5(-2.0)(+2.5)(stat)(-1.9)(+1.1)(syst)% where l indicates the average of e and mu.
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