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

TL;DR

This study measures the cross section of the process $e^+e^- o ext{omega eta pi}^0$ in the 1.45-2.00 GeV range using the SND detector, revealing a threshold near 1.75 GeV and identifying the dominant intermediate state.

Contribution

First measurement of the $e^+e^- o ext{omega eta pi}^0$ cross section in the specified energy range with identification of the main intermediate state.

Findings

Cross section starts near 1.75 GeV

Value around 2 nb in 1.8-2.0 GeV range

Dominant intermediate state is $ ext{omega} a_0(980)$

Abstract

The process $e^+e^-\to\omega\eta\pi^0$ 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 $e^+e^-\to\omega\eta\pi^0$ 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 $e^+e^- \to \omega\eta\pi^0$ is found to be $\omega a_0(980)$.