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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2002, vol. 537, p. 201-210

Experimental study of ρ → π0π0γ and ω → π0π0γ decays

Achasov M. N., Beloborodov K. I., Berdyugin A. V., Bogdanchikov A. G., Bozhenok A. V., Bukin D. A., Burdin S. V., Vasiljev A. V., Golubev V. B., Dimova T. V., Druzhinin V. P., Ivanchenko V. N., Korol A. A., Koop I. A., Koshuba S. V., Otboev A. V., Pakhtusova E. V., Salnikov A. A., Serednyakov S. I., Sidorov V. A., Silagadze Z. K., Skrinsky A. N., Skripkin A. G., Usov Yu V., Shary V. V., Shatunov Yu M.

The e+e- → π0π0γ process was studied in the SND experiment at VEPP-2M e+e- collider in the energy region 0.60-0.97 GeV. From the analysis of the energy dependence of measured cross section the branching ratios B(ω → π0π0γ) = (6.6-0.8 +1.4 ± 0.6) × 10-5 and B(ρ → π0π0γ) = (4.1-0.9 +1.0 ± 0.3) × 10-5 were obtained. © 2002 Elsevier Science B.V. All rights reserved.