Study of the process $e^{+}{e}^{-}\to \hat{I}\cdot {\hat{I}}^3$ in the center-of-mass energy range 1.07--2.00 GeV

Abstract

The $e^{+}{e}^{-}\to \hat{I}\cdot {\hat{I}}^3$ cross section has been measured in the center-of-mass energy range 1.07--2.00 GeV using the decay mode $\hat{I}\cdot \to 3\ddot{I}{€}^0$, $\ddot{I}{€}^0\to {\hat{I}}^3{\hat{I}}^3$. The analysis is based on 36 pb${}^{-1}$ of integrated luminosity collected with the SND detector at the VEPP-2000 $e^{+}{e}^{-}$ collider. The measured cross section of about 35 pb at 1.5 GeV is explained by decays of the $\ddot{I}(1450)$ and $\ddot{I}•(1680)$ resonances.

9 pages, 5 figures, 1 table