Measurement of the semileptonic branching fraction of the B[subscript s] meson
Name
Lees-2012-Measurement of the semileptonic branching.pdf
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Alternative Title
Measurement of the semileptonic branching fraction of the Bs meson
Date Issued
January 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
"Measurement of the semileptonic branching fraction of the B[subscript s] meson." Physical Review D, 85 (2012): [9 pages].© 2012 American Physical Society.
Version
Final published version
Abstract
We report a measurement of the inclusive semileptonic branching fraction of the B[subscript s] meson using data collected with the BABAR detector in the center-of-mass energy region above the Υ(4S) resonance. We use the inclusive yield of ϕ mesons and the ϕ yield in association with a high-momentum lepton to perform a simultaneous measurement of the semileptonic branching fraction and the production rate of B[subscript s] mesons relative to all B mesons as a function of center-of-mass energy. The inclusive semileptonic branching fraction of the B[subscript s] meson is determined to be B(B[subscript s]-->ℓνX)=9.5-2.0+2.5(stat)-1.9+1.1(syst)%, where ℓ indicates the average of e and μ.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.011101
