Observation of the decay PHI(1020)--->OMEGA+PI0

Abstract

The reaction e^+e^- ---> OMEGA+PI0 ---> PI+PI- 2PI0 has been studied with SND detector at VEPP-2M e^+e^- collider in the vicinity of the PHI(1020) meson resonance. The observed interference pattern in the energy dependence of the cross section is consistent with existence of the decay PHI ---> OMEGA+PI0 with a branching ratio of B(PHI ---> OMEGA+PI0)=(4.8+1.9-1.7+-0.8)x10^{-5}. The real and imaginary parts of the decay amplitude were measured. The PHI ---> OMEGA+PI0 decay was observed for the first time.

arXiv comment6 pages, 5 figures, Will be published in Phys.Lett.B

Cited by in corpus (12)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Light Meson Spectroscopy
• Spherical Neutral Detector for VEPP-2M collider
• Study of the $\varphi$ decays into ${\pi }^0{\pi }^0\gamma$ and $\eta {\pi }^0\gamma$ final states
• Measurements of the parameters of the $\varphi (1020)$ resonance through studies of the processes $e^{+}{e}^{-}\to K^{+}{K}^{-}$, $K_S{K}_L$ and ${\pi }^{+}{\pi }^{-}{\pi }^0$
• Observation of the phi to pi+pi-pi+pi- Decay
• Investigation of the $e^{+}{e}^{-}\to \omega {\pi }^0\to {\pi }^0{\pi }^0\gamma$ reaction in the energy domain near the $\varphi$-meson
• Isospin violation in $\varphi ,J/\psi ,{\psi }^{\prime }\to \omega {\pi }^0$ via hadronic loops
• Study of isospin violating $\varphi$ excitation in $e^{+}{e}^{-}\to \omega {\pi }^0$
• Decay phi->pi+pi-
• New Data from SND Detector in Novosibirsk
• CMD-2 and SND results on the rho, omega and phi