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

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

1999-01-14

arxiv.org/abs/hep-ex/9901020v1

Phys.Lett.B449:122-127,1999

Physics

High Energy Physics

High Energy Physics - Experiment

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

Scientific paper

10.1016/S0370-2693(99)00043-X

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.

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