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Phys. Rev. Lett. 65, 1531–1534 (1990)

Determination of B(Ds+→φπ+) via observation of Ds+→φl+ν

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J. Alexander et al.
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Received 28 June 1990; published in the issue dated 24 September 1990

Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio Γ(Ds+→φl+ν)/Γ(Ds+ →φπ+)=0.49±0.10-0.14+0.10. We use this measurement to derive B(Ds+→φπ+).

© 1990 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.1531
DOI:
10.1103/PhysRevLett.65.1531
PACS:
13.20.Fc, 13.25.+m