New experimental data for the decays $\ddot{I}•\to \hat{I}{¼}^{+}\hat{I}{¼}^{-}$ and $\ddot{I}•\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}$ from SND detector

Abstract

The processes $e^{+}{e}^{-}\to \hat{I}{¼}^{+}\hat{I}{¼}^{-}$ and $e^{+}{e}^{-}\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}$ have been studied with SND detector at VEPP-2M $e^{+}{e}^{-}$ collider in the vicinity of $\ddot{I}•(1020)$ resonance. The branching ratios $B(\ddot{I}•\to \hat{I}{¼}^{+}\hat{I}{¼}^{-})=(3.30\pm 0.45\pm 0.32)\times 10^{-4}$ and $B(\ddot{I}•\to \ddot{I}{€}^{+}\ddot{I}{€}^{-})=(0.71\pm 0.11\pm 0.09)\times 10^{-4}$ were obtained.

5 pages, 4 figures, talk given at 8th International Conference on Hadron Spectroscopy (HADRON 99), Beijing, China, 24-28 Aug 1999