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.

arXiv comment20 pages, 11 figures, 2 tables

References in corpus (5)

• Reevaluation of the Hadronic Contributions to the Muon g-2 and to alpha(MZ)
• (g-2)_mu and alpha(M_Z^2) re-evaluated using new precise data
• Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
• Study of the process $e^{+}{e}^{-}\to p\bar{p}$ in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector
• Backscattering of Laser Radiation on Ultra-Relativistic Electrons in Transverse Magnetic Field: Evidence of Photon Interference in a MeV Scale

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• Study of the process $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\eta$ using initial state radiation
• The strong coupling from an improved $\tau$ vector isovector spectral function
• Measurement of the $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^0\eta$ cross section below $\sqrt{s}=2$ GeV
• Possible Assignment of Excited Light ${}^3{S}_1$ Vector Mesons
• Study of the $\omega$ meson family and newly observed $\omega$-like state $X(2240)$
• Modeling the $R$-ratio and hadronic contributions to $g-2$ with a Treed Gaussian Process