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.

arXiv comment13 pages, 5 figures

References in corpus (7)

• The muon $g-2$ and $\alpha (M_Z^2)$: a new data-based analysis
• Reevaluation of the hadronic vacuum polarisation contributions to the Standard Model predictions of the muon g-2 and alpha(mZ) using newest hadronic cross-section data
• Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
• Backscattering of Laser Radiation on Ultra-Relativistic Electrons in Transverse Magnetic Field: Evidence of Photon Interference in a MeV Scale
• The system for delivery of IR laser radiaton into high vacuum
• The Muon g-2 in Progress
• 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

Cited by in corpus (7)

• The anomalous magnetic moment of the muon in the Standard Model
• The $g-2$ of charged leptons, $\alpha (M_Z^2)$ and the hyperfine splitting of muonium
• The anomalous magnetic moment of the muon in the Standard Model: an update
• Data-driven evaluations of Euclidean windows to scrutinize hadronic vacuum polarization
• Axial-vector transition form factors and $e^{+}{e}^{-}\to f_1{\pi }^{+}{\pi }^{-}$
• Study of the reactions $e^{+}{e}^{-}\to 2({\pi }^{+}{\pi }^{-}){\pi }^0{\pi }^0{\pi }^0$ and $e^{+}{e}^{-}\to 2({\pi }^{+}{\pi }^{-}){\pi }^0{\pi }^0\eta$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation
• Modeling the $R$-ratio and hadronic contributions to $g-2$ with a Treed Gaussian Process