Aspects of $Z_{cs}(3985)$ and $Z_{cs}(4000)$

Shuai Han, Li-Ye Xiao

In the present work we investigate the ${\eta }_{c}K$, $J/\psi K$, ${\eta }_c{K}^{\ast }$ and $J/\psi K^{\ast }$ hidden-charm decay modes for the $c\bar{c}s\bar{u}$ four-quark system in the molecular and compact te…