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.
@article{arxiv.hep-ex/9901020,
title = {Observation of the decay PHI(1020)--->OMEGA+PI0},
author = {M. N. Achasov and S. E. Baru and A. V. Berdyugin and A. V. Bozhenok and D. A. Bukin and S. V. Burdin and T. V. Dimova and S. I. Dolinsky and V. P. Druzhinin and M. S. Dubrovin and I. A. Gaponenko and V. B. Golubev and V. N. Ivanchenko and A. A. Korol and M. S. Korostelev and S. V. Koshuba and E. V. Pakhtusova and A. A. Polunin and E. E. Pyata and A. A. Salnikov and V. V. Shary and S. I. Serednyakov and Yu. M. Shatunov and V. A. Sidorov and A. N. Skrinsky and Z. K. Silagadze and Yu. S. Velikzhanin},
journal= {arXiv preprint arXiv:hep-ex/9901020},
year = {2008}
}
Comments
6 pages, 5 figures, Will be published in Phys.Lett.B