Inspired by the $P_{ cs}(4459)$ reported by the LHCb collaboration recently, we investigate the $P_{ cs}(4459)$ production from $\Xi_b$ decay in a molecular scenario using an effective Lagrangian approach. With different $J^P$ assignments to $P_{ cs}(4459)$, the magnitude of branching fractions of $\Xi_b \to P_{ cs}(4459) K$ is estimated, which is of the order of $10^{ -4}$. Together with the decay properties of $P_{ cs}(4459)$, the present estimations could be further testified by precise measurements and contribute to a better understanding of the molecular interpretations and the exploration of $J^P$ quantum numbers of $P_{ cs}(4459)$.
Categories: hep-ph