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

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 $\varphi (1020)\eta$ intermediate states in the lower energy range, and by the $a_0(980)\rho (770)$ intermediate state at higher energies.

20 pages, 11 figures, 2 tables

References in corpus (1)

• Backscattering of Laser Radiation on Ultra-Relativistic Electrons in Transverse Magnetic Field: Evidence of Photon Interference in a MeV Scale

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