Measurement of and production in meson decays and from continuum annihilation at GeV
Collaboration
8 pages
Published in:
- Phys.Rev.D 65 (2002) 091104
e-Print:
- hep-ex/0201041 [hep-ex]
Report number:
- SLAC-PUB-9131,
- BABAR-PUB-01-17
Experiments:
View in:
Citations per year
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+
References(12)
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