Assignments of the X 4140 , X 4500

Abstract

In this article, we take into account our previous calculations based on the QCD sum rules, and tentatively assign the $X\left(4630\right)$ as the $D_s^{\ast }{\overline{D}}_{s1}-D_{s1}{\overline{D}}_s^{\ast }$ tetraquark molecular state or ${\left[cs\right]}_P{\left[\overline{c}\overline{s}\right]}_A+{\left[cs\right]}_A{\left[\overline{c}\overline{s}\right]}_P$ tetraquark state with the $J^{PC}=1^{-+}$ , and assign the $X\left(3915\right)$ and $X\left(4500\right)$ as the 1S and 2S ${\left[cs\right]}_A{\left[\overline{c}\overline{s}\right]}_A$ tetraquark states, respectively, with the $J^{PC}=0^{++}$ . Then, we extend our previous works to investigate the LHCb’s new tetraquark candidate

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