Experimental Study of rho -> pi0 pi0 gamma and omega -> pi0 pi0 gamma Decays

Abstract

The e+e- -> pi0 pi0 gamma process was studied in the SND experiment at VEPP-2M e+e- collider in the energy region 0.60-0.97 GeV. From the analysis of the energy dependence of measured cross section the branching ratios B(omega -> pi0 pi0 gamma)= (6.6 +1.4-0.8(stat) +-0.6(syst))x10^-5 and B(rho -> pi0 pi0 gamma)=(4.1 +1.0-0.9(stat) +-0.3(syst))x10^-5 were obtained.

arXiv comment16 pages, 7 figures, submitted to Phys. Lett. B

References in corpus (12)

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• Spherical Neutral Detector for VEPP-2M collider
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• Scalar sigma meson effects in rho and omega decays into pi0 pi0 gamma
• Investigation of the $e^{+}{e}^{-}\to \omega {\pi }^0\to {\pi }^0{\pi }^0\gamma$ reaction in the energy domain near the $\varphi$-meson
• The decay ${\rho }^0\to {\pi }^0{\pi }^0\gamma$ and the role of $\sigma$-meson
• The role of $\sigma$-meson in $\omega \to \pi \pi \gamma$ decays and the coupling constant $g_{\omega \sigma \gamma }$
• $\omega -\rho$ Mixing and the $\omega \to \pi \pi \gamma$ Decay

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