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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2003, vol. 562, p. 173-181

Study of the process e+e- →ωπ0→π0π0γ in c.m. energy range 920-1380 MeV at CMD-2

Akhmetshin R. R., Aulchenko V. M., Banzarov V. Sh, Baratt A., Barkov L. M., Baru S. E., Bashtovoy N. S., Bondar A. E., Bondarev D. V., Bragin A. V., Eidelman S. I., Epifanov D. A., Fedotovitch G. V., Gabyshev N. I., Gorbachev D. A., Grebeniuk A. A., Grigoriev D. N., Hughes V. W., Ignatov F. V., Karpov S. V., Kazanin V. F., Khazin B. I., Koop I. A., Krokovny P. P., Kuzmin A. S., Logashenko I. B., Lukin P. A., Lysenko A. P., Mikhailov K. Yu, Milstein A. I., Nesterenko I. N., Okhapkin V. S., Otboev A. V., Pak A. V., Perevedentsev E. A., Polunin A. A., Popov A. S., Redin S. I., Roberts B. L., Root N. I., Ruban A. A., Ryskulov N. M., Shamov A. G., Shatunov Yu M., Shwartz B. A., Sibidanov A. L., Sidorov V. A., Skrinsky A. N., Snopkov I. G., Solodov E. P., Stepanov P. Yu, Thompson J. A., Valishev A. A., Yudin Yu V., Zaitsev A. S., Zverev S. G.

The cross section of the process e+e-→ωπ0→ π0π0γ has been measured in the c.m. energy range 920-1380 MeV with the CMD-2 detector. Its energy dependence is well described by the interference of the ρ(770) and ρ(1450) mesons decaying to ωπ0. Upper limits for the cross sections of the direct processes e+e-→π0π0γ, ηπ0γ have been set. © 2003 Elsevier Science B.V. All rights reserved.