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Phys. Rev. D 70, 112004 (2004) [10 pages]

Measuring B(D+μ+ν) and the pseudoscalar decay constant fD+

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G. Bonvicini et al. CLEO Collaboration
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Received 11 November 2004; published 17 December 2004

In 60   pb-1 of data taken on the ψ(3770) resonance with the CLEO-c detector, we find eight D+μ+ν decay candidates that are mostly signal, containing only one estimated background. Using this statistically compelling sample, we measure a value of B(D+μ+ν)=(3.5±1.4±0.6)×10-4, and determine fD+=(202±41±17)  MeV.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.70.112004
DOI:
10.1103/PhysRevD.70.112004
PACS:
13.20.Fc, 13.66.Bc