Study of the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\omega}\ensuremath{\eta}{\ensuremath{\pi}}^{0}$ in the energy range $\sqrt{s}&lt;2\text{ }\text{ }\mathrm{GeV}$ with the SND detector

Study of the process $e^{+} e^{-} \to ω η π^{0}$ in the energy range $\sqrt{s} < 2 GeV$ with the SND detector

M. N. Achasov et al.

Phys. Rev. D 94, 032010 – Published 23 August 2016

Abstract

The process $e^{+} e^{-} \to ω η π^{0}$ 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 $e^{+} e^{-} \to ω η π^{0}$ 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 $e^{+} e^{-} \to ω η π^{0}$ is found to be $ω a_{0} (980)$ .