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A Measurement of ${\cal B}(D_s \to \phi l^+ \nu)/{cal B}(D_s\to \phi \pi^+)$

High Energy Physics - Phenomenology 2012-08-27 v1 High Energy Physics - Experiment
Authors: The CLEO Collaboration
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Abstract

Using the CLEO~II detector at CESR, we have measured the ratio of branching fractions B(Ds+→ϕe+ν)/B(Ds+→ϕπ+)=0.54±0.05±0.04{\cal B}(D_s^+ \to \phi e^+ \nu)/{\cal B}(D_s^+ \to \phi\pi^+) = 0.54\pm 0.05\pm 0.04. We use this measurement to obtain a model dependent estimate of B(Ds+→ϕπ+){\cal B}(D_s^+ \to \phi \pi^+).

Cite

@article{arxiv.hep-ph/9403328,
  title  = {A Measurement of ${\cal B}(D_s \to \phi l^+ \nu)/{cal B}(D_s\to \phi \pi^+)$},
  author = {The CLEO Collaboration},
  journal= {arXiv preprint arXiv:hep-ph/9403328},
  year   = {2012}
}

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19 pages uuencoded compressed postscript (process with uudecode then gunzip). hardcopies with figures can be obtained by sending mail to: [email protected]

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