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Phys. Rev. D 53, 4734–4746 (1996)

Measurements of B→Ds+X decays

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D. Gibaut et al.
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Received 19 October 1995; published in the issue dated 1 May 1996

This paper describes new measurements from CLEO of the inclusive BDs+X branching fraction as well as the B+Ds(*)+D¯(*)0 and B0Ds(*)+D(*)- branching fractions. The inclusive branching fraction is B(BDs+X)=(12.11±0.39±0.88±1.38)% where the first error is statistical, the second is the systematic error, and the third is the error due to the uncertainty in the Ds+→φπ+ branching fraction. The branching fractions for the BDs(*)+D¯(*) modes are found to be between 0.9% and 2.4% and are significantly more precise than previous measurements. The sum of the BDs(*)+D¯(*) branching fractions is consistent with the results of fits to the inclusive Ds+ momentum spectrum. Factorization is used to arrive at a value for fDs, the Ds+ decay constant. © 1996 The American Physical Society.

© 1996 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.53.4734
DOI:
10.1103/PhysRevD.53.4734
PACS:
13.25.Hw