论文标题
$ z_ {cs}（3985/4000）$的衰减宽度基于严格的夸克 - 哈德隆偶性
The decay widths of the $Z_{cs}(3985/4000)$ based on rigorous quark-hadron duality
论文作者
论文摘要
在这项工作中，我们探索了hr子耦合常数$ g_ {zj/ψk} $，$ g_ {zη_ck^*} $，$ g_ {zd^* \ bar {d} _s}分配$ j^{pc} = 1^{+ - } $，基于严格的夸克 - 哈德隆偶性。然后，我们获得总宽度$γ_{z_ {cs}}^t = 15.31 \ pm 2.06 \，\ rm {mev} $和$γ_{z_ {z_ {cs}}}^m = 83.51 $ 13.8^{+8.1} _ { - 5.2} \ pm4.9 \，\ rm {mev} $从besiii协作和$ 131 \ pm 15 \ pm 26 \，\ rm {mev} $分别从lhcb协作中，并分别从lhcbssorati $ z_ {cs}（4000）$分别为$ j^{pc} = 1^{+ - } $，为隐藏的charm tetraquark状态和分子状态。
In this work, we explore the hadronic coupling constants $G_{ZJ/ψK}$, $G_{Zη_c K^*}$, $G_{ZD^* \bar{D}_s}$ of the exotic states $Z_{cs}(3985/4000)$ both in the pictures of the tetraquark states and molecular states with the tentative assignments $J^{PC}=1^{+-}$ based on the rigorous quark-hadron duality. Then we obtain the total widths $Γ_{Z_{cs}}^T =15.31\pm 2.06\,\rm{MeV}$ and $Γ_{Z_{cs}}^M=83.51\pm21.09\,\rm{MeV}$, which are consistent with the experimental data $13.8^{+8.1}_{-5.2}\pm4.9\,\rm{MeV}$ from the BESIII collaboration and $131 \pm 15 \pm 26\,\rm{MeV}$ from the LHCb collaboration, respectively, and support assigning the $Z_{cs}(3985)$ and $Z_{cs}(4000)$ to be the hidden-charm tetraquark state and molecular state with the $J^{PC}=1^{+-}$, respectively.
