Measurement of Ds+D_s^+ and Ds+D_s^{*+} production in BB meson decays and from continuum e+ee^+e^- annihilation at s=10.6\sqrt{s}=10.6 GeV

Collaboration
Jan, 2002
8 pages
Published in:
  • Phys.Rev.D 65 (2002) 091104
e-Print:
Report number:
  • SLAC-PUB-9131,
  • BABAR-PUB-01-17
Experiments:

Citations per year

200220082014202020240123456
Abstract: (arXiv)
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.
  • 14.40.Nd
  • 13.25.Hw
  • electron positron: colliding beams
  • electron positron: annihilation
  • Upsilon(10570): electroproduction
  • B: pair production
  • B: hadronic decay
  • B: branching ratio
  • charmed meson: electroproduction
  • D/s+