# Study of the process $e^+e^-\to \pi^+\pi^-\pi^0\eta$ in the c.m. energy range 1394--2005 MeV with the CMD-3 detector

## TL;DR

This study measures the cross section of the $e^+e^- o \pi^+\pi^-\pi^0\eta$ process across 1394--2005 MeV, revealing dominant intermediate states and providing detailed insights into the production dynamics at different energies.

## Contribution

First measurement of the $e^+e^- o \pi^+\pi^-\pi^0\eta$ cross section in the 1394--2005 MeV range using CMD-3 detector data.

## Key findings

- Production dominated by $\omega(782)\eta$ and $\phi(1020)\eta$ at lower energies.
- Higher energies show dominance of $a_0(980)
ho(770)$ intermediate state.
- 2769±95 signal events observed in the studied energy range.

## Abstract

The cross section of the process $e^+e^- \to \pi^+\pi^-\pi^0\eta$ has been measured using a data sample of 21.8 pb$^{-1}$ collected with the CMD-3 detector at the VEPP-2000 $e^+e^-$ collider. 2769$\pm$95 signal events have been selected in the center-of-mass energy range 1394--2005 MeV. The production dynamics is dominated by the $\omega(782)\eta$ and $\phi(1020)\eta$ intermediate states in the lower energy range, and by the $a_0(980)\rho(770)$ intermediate state at higher energies.