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Measurement of the semileptonic branching fraction of the B[subscript s] meson

Author(s)
Dujmic, Denis; Sciolla, Gabriella; Cowan, Ray F
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Alternative title
Measurement of the semileptonic branching fraction of the Bs meson
Terms of use
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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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.
Date issued
2012-01
URI
http://hdl.handle.net/1721.1/70552
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
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
ISSN
1550-7998
1550-2368

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