Meson-baryon final-state interactions in the $\psi (3686)\to p{K}^{-}{K}_S^0{\bar{\Xi }}^0$ decay

F. C. Sobrinho, W. -T. Lyu, E. Oset

We study the decay $\psi (3686)\to p{K}^{-}{\bar{K}}^0{\bar{\Xi }}^0$, treating the $\psi (3686)$ as a $c\bar{c}$ state and therefore as a singlet under SU(3) transformations in the light-quark sector…