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The new members of the charm-strange family $D_{sJ}^{*}(2317)$,$D_{sJ}(2460)$ and $D_s(2632)$, which have the surprising properties, arechallenging the present models. Many theoretical interpretations have beendevoted to this issue. Most of authors suggest that they are not theconventional $c\bar s$ quark model states, but possibly are four-quark states,molecule states or mixtures of a P-wave $c\bar s$ and a four-quark state. Inthis work, we follow the four-quark-state picture, and study the masses of$cn\bar n\bar s/cs\bar s\bar s$ states ($n$ is $u$ or $d$ quark) in the chiralSU(3) quark model. The numerical results show that the mass of the mixedfour-quark state ($cn\bar n\bar s/cs\bar s\bar s$) with spin parity $J^P=0^{+}$might not be $D_s(2632)$. At the same time, we also conclude that$D_{sJ}^{*}(2317)$ and $D_{sJ}(2460)$ cannot be explained as the purefour-quark state.Comment: 20 page

Chiral SU(3) Quark Model Study of Tetraquark States: cnn̄s̄/css̄s̄