Using the local hidden gauge approach, we study the possibility of the existence of bottom strange molecular states with isospin 0. We find three bound states with spin parity $0^{+}$, $1^{+}$, and $2^{+}$ generated by the ${\overline{K}}^{*}{B}^{*}$ and $\omega B_s^{*}$ interaction, among which the state with spin 2 can be identified as $B_{s2}^{*}(5840)$. In addition, we also study the ${\overline{K}}^{*}B$ and $\omega B_s$ interaction and find a bound state which can be associated to $B_{s1}(5830)$. In addition, the $\overline{K}{B}^{*}$, $\eta B_s^{*}$, $\overline{K}B$, and $\eta B_s$ systems are studied, and two bound states are predicted. We expect that further experiments can confirm our predictions.

• Received 26 January 2018

DOI:https://doi.org/10.1103/PhysRevD.97.094031

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Published by the American Physical Society