Measurement of Ds+ and Ds*+ Production in B Meson Decays and from Continuum e+e- Annihilation at sqrt{s}=10.6 GeV

Abstract

New measurements of Ds+ and Ds*+ meson production rates from B decays and from qqbar continuum events near the Y(4S) resonance are presented. Using 20.8 fb-1 of data on the Y(4S) resonance and 2.6 fb-1 off resonance, we find the inclusive branching fractions BR(B --> Ds+ X) = (10.93+/-0.19+/-0.58+/-2.73)% and BR(B --> Ds*+ X) = (7.9+/-0.8+/-0.7+/-2.0)%, where the first error is statistical, the second is systematic, and the third is due to the Ds+ --> phi pi+ branching fraction uncertainty. The branching fractions SumBR(B --> Ds(*)+ Dbar(*)) = (5.07+/-0.14+/-0.30+/-1.27)% and SumBR(B --> Ds*+ Dbar(*)) = (4.1+/-0.2+/-0.4+/-1.0)% are determined from the Ds(*)+ momentum spectra.

8 pages, 7 postscript figues, submitted to PRD(RC)

References in corpus (6)

• The BABAR Detector
• The Baffling Semileptonic Branching Ratio of $B$ Mesons
• Flavor-Specific Inclusive B Decays to Charm
• Inconclusive Inclusive Nonleptonic $B$ Decays
• Measurements of B --> D_s^{(*)+} D^{*(*)} Branching Fractions
• Recent results from CLEO on Charm and Bottom hadrons

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• Measurement of D*+/- meson production in jets from pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
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• Measurement of the Mass Difference m(D_s^+) - m(D^+) at CDF II
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• Charmed Hadrons from Fragmentation and B Decays