手征有效场论中$Z_{cs}(3985)$性质的解码和带电重类夸克态谱的建立
Decoding the nature of $Z_{cs}(3985)$ and establishing the spectrum of charged heavy quarkoniumlike states in chiral effective field theory
摘要：
我们在手征有效场论的框架下研究了新观测到的类粲偶素态$Z_{cs}(3985)$。用显式手征动力学方法计算了$\bar{D}_sD^\ast/\bar{D}^\ast_sD$体系的相互作用核。用从$Z_c(3900)$数据中提取的拟合参数作为输入，得到的$Z_{cs}(3985)$的质量、宽度和事件分布与实验测量值非常一致。我们的研究有力地支持了在SU（3）$_f$对称性中$Z_{cs}(3985)$是$Z_c(3900)$的伙伴，并且支持了$\bar{D}_sD^\ast/\bar{D}^\ast_sD$分子共振与其它带电重类夸克偶素态具有相同的动力学起源.我们精确地预测了$\bar{D}_s^\ast D^\ast$、$B^\ast_s \bar{B}/B_s\bar{B}^\ast$和$B_s^\ast\bar{B}^\ast$体系中未观测态的共振参数，建立了一个完整的$I(J^P)$量子数分别为$1(1^+)$和$\frac{1}{2}(1^+)$的荷电类粲和类底偶态的光谱.
英文摘要：
We study the newly observed charmoniumlike state $Z_{cs}(3985)$ in the framework of chiral effective field theory. The interaction kernel of the $\bar{D}_sD^\ast/\bar{D}^\ast_sD$ system is calculated up to the next-to-leading order with the explicit chiral dynamics. With the fitted parameters extracted from the $Z_c(3900)$ data as inputs, the mass, width and event distributions of the $Z_{cs}(3985)$ are very consistent with the experimental measurements. Our studies strongly support the $Z_{cs}(3985)$ as the partner of the $Z_c(3900)$ in the SU(3)$_f$ symmetry and the $\bar{D}_sD^\ast/\bar{D}^\ast_sD$ molecular resonance with the same dynamical origin as the other charged heavy quarkoniumlike states. We precisely predict the resonance parameters of the unobserved states in $\bar{D}_s^\ast D^\ast$, $B^\ast_s \bar{B}/B_s\bar{B}^\ast$ and $B_s^\ast\bar{B}^\ast$ systems, and establish a complete spectrum of the charged charmoniumlike and bottomoniumlike states with the $I(J^P)$ quantum numbers $1(1^+)$ and $\frac{1}{2}(1^+)$, respectively.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
