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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2014, vol. 90, p. -

Study of the process e+e- →ηγ in the center-of-mass energy range 1.07-2.00 GeV STUDY of the PROCESS e+e- →ηγ ... M.N. ACHASOV et al.

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

The e+e-→ηγ cross section has been measured in the center-of-mass energy range 1.07-2.00 GeV using the decay mode η→3π0, π0→γγ. The analysis is based on 36pb-1 of integrated luminosity collected with the SND detector at the VEPP-2000 e+e- collider. The measured cross section of about 40 pb at 1.5 GeV is explained by decays of the ρ(1450) and φ(1680) resonances. © 2014 American Physical Society.