A study of charged kappa in $J/\psi \to K^{\pm }{K}_s{\pi }^{\mp }{\pi }^0$

M. Ablikim

Based on $58\times 10^6$ $J/\psi$ events collected by BESII, the decay $J/\psi \to K^{\pm }{K}_s{\pi }^{\mp }{\pi }^0$ is studied. In the invariant mass spectrum recoiling against the charged $K^*…