Measurement of the cross section for the e+e− → ωπ0 → π0π0γ process in the energy range of 1.1–1.9 GeV

• Published in: JETP letters 2012, Vol.94 (10), p.734-737
• Main Authors: 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.
• Format: Article
• Language: English
• Subjects: Atomic; Biological and Medical Physics; Biophysics; Fields; Molecular; Nuclei; Optical and Plasma Physics; Particle and Nuclear Physics; Particles; Physics; Physics and Astronomy; Quantum Information Technology; Solid State Physics; Spintronics
• ISSN: 0021-3640; 1090-6487
• DOI: 10.1134/S0021364011220024

The cross section for the e + e − → ωπ 0 → π 0 π 0 γ 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.