The ϕ(1020)π0π0γ decay
M. N. Achasov, S. E. Baru, K. I. Beloborodov, A. V. Berdyugin, A. V. Bozhenok, A. D. Bukin, D. A. Bukin, S. V. Burdin, T. V. Dimova, A. A. Drozdetsky, V. P. Druzhinin, M. S. Dubrovin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, A. A. Korol, I. A. Koop, S. V. Koshuba, G. A. Kukartsev, A. A. Mamutkin, E. V. Pakhtusova, A. A. Salnikov, S. I. Serednyakov, V. V. Shary, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, A. N. Skrinsky, A. A. Valishev, A. V. Vasiljev
Abstract
In the SND experiment at VEPP-2M e+e- collider the ϕ(1020)π0π0γ decay was studied and its branching ratio was measured: B(ϕπ0π0γ)=(1.221 0.0980.061)·10-4. It was shown, that f0(980)γ intermediate state dominates in this decay and the f0(980)-meson parameters were obtained.
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