Measurement of the $e^{+}{e}^{-}\to \eta {\pi }^{+}{\pi }^{-}$ cross section in the center-of-mass energy range 1.22--2.00 GeV with the SND detector at the VEPP-2000 collider

V. M. Aulchenko, M. N. Achasov, A. Yu. Barnyakov +29

In the experiment with the SND detector at the VEPP-2000 $e^{+}{e}^{-}$ collider the cross section for the process $e^{+}{e}^{-}\to \eta {\pi }^{+}{\pi }^{-}$ has been measured in the center-of-mass energy range…