论文标题
新观察的$ z_ {cs}^ - （3985）$作为$ d_s^{（*） - } d^{（*）0} $分子状态的说明
Explanation of the newly obseaved $Z_{cs}^-(3985)$ as a $D_s^{(*)-}D^{(*)0}$ molecular state
论文作者
论文摘要
受BESIII合作的新观察到的$ z_ {cs}^ - （3985）$的启发，我们在$ d_s^{（*） - } d^{（*）0} 0} $分子状态下研究了该粒子的结构。首先，我们系统地构建了Lagrangians，这些Lagrangians描述了手性和隐藏的局部对称性，描述了Charmed Meson的相互作用。通过从构造的拉格朗日人获得的有效电势后，我们将耦合的通道Bethe-Salpeter方程求解了壳近似。在第三张Reimann纸上，获得了约$ 3982.34-I0.53 $ MEV的极点位置，可以与$ z_ {cs}^ - （3985）$相关联，并将其解释为$ d_s^*\ bar {d}^*$的松散界面状态。
Inspired by the newly observed $Z_{cs}^-(3985)$ by BESIII collaboration, we study the structure of this particle in the picture of $D_s^{(*)-}D^{(*)0}$ molecular state. Firstly we systematically construct the Lagrangians which describing the interaction of charmed mesons, taking into account the chiral and hidden local symmetries. With the obtained effective potentials from the Lagrangians constructed, we solve the coupled channel Bethe-Salpeter equation with the on-shell approximation. On the third Reimann sheet, a pole position of around $3982.34-i0.53$ MeV is obtained, which can be associated to the $Z_{cs}^-(3985)$ and explained as a loose bound state of $D_s^*\bar{D}^*$.
