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arXiv · 2210.13284

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

Pedro Bicudo·Nuno Cardoso·Lasse Mueller·Marc Wagner
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Abstract

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

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Pedro Bicudo, Nuno Cardoso, Lasse Mueller, Marc Wagner. 2022-10-24. Study of $I=0$ bottomonium bound states and resonances based on lattice QCD static potentials. https://arxiv.org/abs/2210.13284

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