Investigation of $cs\bar{c}\bar{s}$ tetraquark in the chiral quark model

Yifan Yang, Jialun Ping

Inspired by the recent observation of exotic resonances $X(4140)$, $X(4274)$, $X(4350)$, $X(4500)$ and $X(4700)$ reported by several experiment collaborations, we investigated the…