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ISSN - 15507998, Physical Review D - Particles, Fields, Gravitation and Cosmology, 2016, vol. 94, 3, p. -

Study of the process e+e- →ωηπ0 in the energy range s <2 GeV with the SND detector

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

© 2016 American Physical Society.The process e+e-→ωηπ0 is studied in the energy range 1.45-2.00 GeV using data with an integrated luminosity of 33 pb-1 accumulated by the SND detector at the e+e- collider VEPP-2000. The e+e-→ωηπ0 cross section is measured for the first time. The cross section has a threshold near 1.75 GeV. Its value is about 2 nb in the energy range 1.8-2.0 GeV. The dominant intermediate state for the process e+e-→ωηπ0 is found to be ωa0(980).