Measurements of B→Ds+X decays

D. Gibaut et al.
Phys. Rev. D 53, 4734 – Published 1 May 1996
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Abstract

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.

  • Received 19 October 1995

DOI:https://doi.org/10.1103/PhysRevD.53.4734

©1996 American Physical Society

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Vol. 53, Iss. 9 — 1 May 1996

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