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Phys. Rev. D 52, 2661–2672 (1995)

Inclusive decays of B mesons to charmonium

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R. Balest et al.
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Received 13 December 1994; published in the issue dated 1 September 1995

We have used the CLEO-II detector at the Cornell Electron Storage Ringe (CESR) to study the inclusive production of charmonium mesons in a sample of 2.15 million BB¯ events. We find inclusive branching fractions of (1.12±0.04±0.06)% for BJX, (0.34±0.04±0.03)% for B→ψ′X, and (0.40±0.06±0.04)% for Bχc1X. We also find some evidence for the inclusive production of χc2, and set an upper limit for the branching fraction of the inclusive decay BηcX of 0.9% at 90% confidence level. Momentum spectra for inclusive J/ψ, ψ′, and χc1 production are presented. These measurements are compared to theoretical calculations.

© 1995 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.52.2661
DOI:
10.1103/PhysRevD.52.2661
PACS:
13.25.Hw, 14.40.Nd