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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2005, vol. 605, p. 26-36

Study of the processes e +e -→ ηγ, π 0γ → 3γ in the c.m. energy range 600-1380 MeV at CMD-2

Akhmetshin R. R., Aulchenko V. M., Banzarov V. Sh, Baratt A., Barkov L. M., 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., Ignatov F. V., Karpov S. V., Kazanin V. F., Khazin B. I., Koop I. A., Krokovny P. P., Kuzmin A. S., Lischenko Yu E., Logashenko I. B., Lukin P. A., Mikhailov K. Yu, Milstein A. I., Nesterenko I. N., Okhapkin V. S., Otboev A. V., 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., Thompson J. A., Valishev A. A., Yudin Yu V., Zaitsev A. S., Zverev S. G.

The processes e+e-→ηγ, π0γ→3γ have been studied in the c.m. energy range 600-1380 MeV with the CMD-2 detector. The following branching ratios have been determined: B(ρ0→ηγ)=(3. 21±1.39±0.20)×10-4,B(ω→ηγ)=(4.44-1. 83+2.59±0.28)×10-4,B(φ→ηγ)=(1.373±0. 014±0.085)×10-2,B(ρ0→π0γ)=(6.21-1.18+1. 28±0.39)×10-4,B(ω→π0γ)=(9.06±0. 20±0.57)×10-2,B(φ→π0γ)=(1.258±0. 037±0.077)×10-3. © 2004 Elsevier B.V. All rights reserved.