A Measurement of the Semileptonic Branching Fraction of the B_s Meson

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We report a measurement of the inclusive semileptonic branching fraction of the B{sub s} meson using data collected with the BABAR detector in the center-of-mass energy region above the {gamma}(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{sub s} mesons relative to all B mesons as a function of center-of-mass energy. The inclusive semileptonic branching fraction of the B{sub s} meson is determined to be {Beta}(B{sub s} {yields} {ell}{nu}X) = 9.5{sub -2.0}{sup +2.5}(stat){sub ... continued below

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8 pages

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Lees, J.P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M. et al. June 12, 2012.

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We report a measurement of the inclusive semileptonic branching fraction of the B{sub s} meson using data collected with the BABAR detector in the center-of-mass energy region above the {gamma}(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{sub s} mesons relative to all B mesons as a function of center-of-mass energy. The inclusive semileptonic branching fraction of the B{sub s} meson is determined to be {Beta}(B{sub s} {yields} {ell}{nu}X) = 9.5{sub -2.0}{sup +2.5}(stat){sub -1.9}{sup +1.1}(syst)%, where {ell} indicates the average of e and {mu}.

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8 pages

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  • Journal Name: Phys.Rev.D85:011101,2012; Journal Volume: 85; Journal Issue: 1

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  • Report No.: SLAC-PUB-14653
  • Grant Number: AC02-76SF00515
  • DOI: 10.1103/PhysRevD.85.011101 | External Link
  • Office of Scientific & Technical Information Report Number: 1043214
  • Archival Resource Key: ark:/67531/metadc843043

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  • June 12, 2012

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • June 20, 2016, 9:34 p.m.

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Lees, J.P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M. et al. A Measurement of the Semileptonic Branching Fraction of the B_s Meson, article, June 12, 2012; United States. (digital.library.unt.edu/ark:/67531/metadc843043/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.