Observation of the conversion decay $φ\toπ^0e^+e^-$ at CMD-2

Details Observation of the conversion decay $φ\toπ^0e^+e^-$ at CMD-2 Observation of the conversion decay $φ\toπ^0e^+e^-$ at CMD-2

2000-11-08

arxiv.org/abs/hep-ex/0011026v1

Phys.Lett.B503:237-244,2001

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 6 PostScript figures, uses refmerge.sty. To be published in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(00)01357-5

Using 15.1^{-1} of data collected by CMD-2 in the $\phi$-meson energy range,
the branching ratio of the conversion decay $\phi\to\pi^0e^+e^-$ has been
measured for the first time: B(\phi\to\pi^0e^+e^-) = (1.22 \pm 0.34 \pm 0.21)
\cdot 10 ^{-5}.

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