Updated measurement of the $e^{+}{e}^{-}\to \ddot{I}‰\ddot{I}{€}^0\to \ddot{I}{€}^0\ddot{I}{€}^0{\hat{I}}^3$ cross section with the SND detector

Abstract

We analyze a 37 pb${}^{-1}$ data sample collected with the SND detector at the VEPP-2000 $e^{+}{e}^{-}$ collider in the center-of-mass energy range 1.05--2.00 GeV and present an updated measurement of the $e^{+}{e}^{-}\to \ddot{I}‰\ddot{I}{€}^0\to \ddot{I}{€}^0\ddot{I}{€}^0{\hat{I}}^3$ cross section. In particular, we correct the mistake in radiative correction calculation made in our previous measurement based on a part of the data. The measured cross section is fitted with the vector meson dominance model with three $\ddot{I}$-like states and used to test the conserved vector current hypothesis in the $\ddot{I}{„}^{-}\to \ddot{I}‰\ddot{I}{€}^{-}\hat{I}{½}_{\ddot{I}}„$ decay.

7 pages, 3 figures, 3 tables