Study of the process $e^{+}{e}^{-}\to 3({\pi }^{+}{\pi }^{-}){\pi }^0$ in the C.M. Energy range 1.6--2.0 GeV with the CMD-3 detector

Abstract

The cross section of the process $e^{+}{e}^{-}\to 3({\pi }^{+}{\pi }^{-}){\pi }^0$ has been measured for the first time using a data sample of 56.7 pb${}^{-1}$ collected with the CMD-3 detector at the VEPP-2000 $e^{+}{e}^{-}$ collider. 632$\pm$32 signal events have been selected in the center-of-mass energy range 1.6 -- 2.0 GeV. A study of dynamics of seven-pion production allows one to extract contributions of the dominated $2({\pi }^{+}{\pi }^{-})\omega$ and $2({\pi }^{+}{\pi }^{-})\eta$ intermediate states.

13 pages, 5 figures

References in corpus (2)

• Backscattering of Laser Radiation on Ultra-Relativistic Electrons in Transverse Magnetic Field: Evidence of Photon Interference in a MeV Scale
• Study of the Process $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ IN THE C.M. Energy Range 920--1060 MeV with the CMD-3 Detector

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