A comparison of the omega-pi form factor from B meson decays with e+e- and tau data finds no statistically significant deviation from QCD factorization in the color-favored channel.
The process $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ up to 1.4 GeV
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abstract
The cross section of the $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ reaction was measured by the SND detector at VEPP-2M $e^+e^-$ collider in the energy range from threshold up to 1.4 GeV. Results of the cross section fitting by the sum of $\rho$, $\rho^{\prime}$ and $\rho^{\prime\prime}$ contributions are presented.
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A study of the corrections to factorization in $\bar{B}^0 \to D^{* +} \omega \pi^-$
A comparison of the omega-pi form factor from B meson decays with e+e- and tau data finds no statistically significant deviation from QCD factorization in the color-favored channel.