Search for the X(5568) state decaying into $\mathrm{B}^{0}_{\mathrm{s}}\pi^{\pm}$ in proton-proton collisions at $\sqrt{s} =$ 8 TeV
Phys.Rev.Lett. 120 (2018) 202005, 2018.
The collaboration

Abstract (data abstract)
Relative production of X(5568) with respect to $B^0_s$, times the branching ratio of the $X(5568) \to B^0_s \pi^\pm$. Numbers are taken from the summary of the paper.