Is the newly observed $X(5568)$ a $Bar{K}$ molecular state?

Abstract： In this work, the performed dynamical study of the $B^{(*)}$ and $ar{K}$ interaction shows that the newly observed $X(5568)$ or$X(5616)$ cannot be assigned to be an isovector $Bar{K}$ or $B^*ar{K}$ molecular state. We continue to investigate the isoscalar $B^{(*)}ar{K}$ systems, and the $B^{(*)}ar{K}^{*}$ systems with isospin $I=0,1$, andpredict the existences of several isoscalar $B^{(*)}ar K^{(*)}$ molecular states. A new taskof exploring open-bottom molecular states will be created for future experiment.