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ISSN - 00213640, EISSN - 10906487, JETP Letters, 2011, vol. 94, p. 734-737

Measurement of the cross section for the e +e - → ωπ 0 → π 0π 0γ process in the energy range of 1.1-1.9 GeV

Achasov M. N., Barnyakov A. Yu, Beloborodov K. I., Berdyugin A. V., Berkaev D. E., Bogdanchikov A. G., Botov A. A., Bukin D. A., Vasiljev A. V., Golubev V. B., Dimova T. V., Druzhinin V. P., Zemlyansky I. M., Kardapoltsev L. V., Kovrizhin D. P., Koop I. A., Korol A. A., Koshuba S. V., Martin K. A., Obrazovsky A. E., Pakhtusova E. V., Rogovsky Yu A., Romanov A. L., Serednyakov S. I., Silagadze Z. K., Skovpen K. Yu, Skrinsky A. N., Surin I. K., Tikhonov Yu A., Usov Yu V., Kharlamov A. G., Shatunov P. Yu, Shatunov Yu M., Shvarts D. B., Shtol D. A.

The cross section for the e +e - → ωπ 0 → π 0π 0γ process has been measured in the energy range of 1.1-1.9 GeV. The measurement has been made with the Spherical Neutral Detector at the VEPP-2000 e +e - collider. The data in the energy range of 1.1-1.4 GeV are in agreement with the earlier measurements with the SND and CMD-2 detectors. The cross section has also been measured above 1.4 GeV. © 2011 Pleiades Publishing, Ltd.