Strong decays of the $Ξ_b(6227)$ as a $Σ_b\bar{K}$ molecule
We study the strong decays of the newly observed $Ξ_b(6227)$ assuming that it is a pure $Σ_b\bar{K}$ molecular state. Considering four possible spin-parity assingments $J^P=1/2^{\pm}$ and $3/2^{\pm}$, the partial decay widths of the $Σ_b\bar{K}$ molecular state into $Λ_b\bar{K}$, $Ξ_bπ$, and $Ξ_b^{'}π$ final states through hadronic loops are evaluated with the help of the effective Lagrangians. In comparison with the LHCb data, the spin-party $1/2^-$ assignment is preferred while those of $J^P=1/2^{+}$ and $J^P=3/2^{\pm}$ are disfavored. In addition, we show that the two allowed decay modes $Λ_b\bar{K}$ and $Ξ_bπ$ of the $Ξ_b(6227)$, being a $S$-wave $Σ_b\bar{K}$ molecular state, have almost equal branching ratios, consistent with the data.