Role of $\hat{I}ž(1690)$ in the $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}›K^0$ reaction

Wen-Tao Lyu, Lian-Rong Dai, Eulogio Oset

Motivated by the recent BESIII measurements of the $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}›K_S^0+c.c.$ process, we investigate this reaction by considering the contributions from the $\hat{I}ž(1690)$, $Λ…