Measurement of the [Formula omitted] cross section with the SND detector

The process [Formula omitted] is studied with the SND detector at the VEPP-2000 [Formula omitted] collider. Basing on data with an integrated luminosity of 26.4 [Formula omitted] we measure the [Formula omitted] cross section in the center-of-mass energy range from 1.28 up to 2 GeV. The measured mass spectrum of the [Formula omitted] system indicates that the dominant mechanism of this reaction is the transition through the [Formula omitted] intermediate state. The cross section for the [Formula omitted] intermediate state is measured separately. The SND results are consistent with previous measurements in the BABAR experiment and have comparable accuracy. We study the effect of the interference between the [Formula omitted] and [Formula omitted] amplitudes. It is found that the interference gives sizable contribution to the measured [Formula omitted] cross section below 1.7 GeV.