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We investigate $I = 0$ bottomonium bound states and resonances in S, P, D andF waves using lattice QCD static-static-light-light potentials. We considerfive coupled channels, one confined quarkonium and four open$B^{(*)}\bar{B}^{(*)}$ and $B^{(*)}_s\bar{B}^{(*)}_s$ meson-meson channels anduse the Born-Oppenheimer approximation and the emergent wave method to computepoles of the T matrix. We discuss results for masses and decay widths andcompare them to existing experimental results. Moreover, we determine thequarkonium and meson-meson composition of these states to clarify, whether theyare ordinary quarkonium or should rather be interpreted as tetraquarks.

Study of $I=0$ bottomonium bound states and resonances based on lattice QCD static potentials