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We compute the composition of the bottomonium $\Upsilon(nS)$ states(including $\Upsilon(10860)$) and the new $\Upsilon(10753)$ resonance reportedby Belle in terms of quarkonium and meson-meson components. We use a recentlydeveloped novel approach utilizing lattice QCD string breaking potentials forthe study of resonances. This approach is based on the Born Oppenheimerapproximation and the unitary emergent wave method and allows to compute thepoles of the $\mbox{S}$ matrix. We focus on $I=0$ bottomonium $S$ wave boundstates and resonances, where the Schr\"odinger equation is a set of coupleddifferential equations. One of the channels corresponds to a confined heavyquark-antiquark pair $\bar b b$, the others to pairs of heavy-light mesons. Ina previous study only one meson-meson channel $\bar{B}^{(\ast)} B^{(\ast)}$ wasconsidered. Now we also include the closed strangeness channel$\bar{B}_s^{(\ast)} B_s^{(\ast)}$ extending our formalism significantly to havea more realistic description of bottomonium. We confirm the new Belle resonance$\Upsilon(10753)$ as a dynamical meson-meson resonance with around $85 \%$meson-meson content. Moreover, we identify $\Upsilon(4S)$ and $\Upsilon(10860)$as states with both sizable quarkonium and meson-meson contents. With theseresults we contribute to the clarification of ongoing controversies in thevector bottomonium spectrum.

physical review. d/physical review. d.

Computation of the quarkonium and meson-meson composition of the  $\Upsilon(nS)$ states and of the new $\Upsilon(10753)$ Belle resonance from  lattice QCD static potentials