Phys. Rev. Lett. 95, 121801 (2005) [6 pages]

Measurement of Absolute Hadronic Branching Fractions of D Mesons and e+e-DD̅ Cross Sections at Ec.m.=3773  MeV

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Q. He et al. CLEO Collaboration
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 See Also: Erratum

Received 1 April 2005; published 14 September 2005

Using 55.8  pb-1 of e+e- collisions recorded at the ψ(3770) resonance with the CLEO-c detector at CESR, we determine absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. Among measurements for three D0 and six D+ modes, we obtain reference branching fractions B(D0K-π+)=(3.91±0.08±0.09)% and B(D+K-π+π+)=(9.5±0.2±0.3)%, where the uncertainties are statistical and systematic, respectively. Final state radiation is included in these branching fractions by allowing for additional, unobserved, photons in the final state. Using a determination of the integrated luminosity, we also extract the cross sections σ(e+e-D0D̅ 0)=(3.60±0.07-0.05+0.07)  nb and σ(e+e-D+D-)=(2.79±0.07-0.04+0.10)  nb.


©2005 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.95.121801
DOI: 10.1103/PhysRevLett.95.121801
PACS: 13.25.Ft, 14.40.Gx

See Also

Erratum: Q. He et al. CLEO Collaboration, Erratum: Measurement of Absolute Hadronic Branching Fractions of D Mesons and e+e-DD̅ Cross Sections at Ec.m.=3773  MeV [Phys. Rev. Lett. 95, 121801 (2005)], Phys. Rev. Lett. 96, 199903 (2006)

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