Speaker
Lasse Mueller
(Goethe University Frankfurt)
Description
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 \box{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.
Primary authors
Lasse Mueller
(Goethe University Frankfurt)
Marc Wagner
(Goethe University Frankfurt)
Nuno Cardoso
(CeFEMA)
Pedro Bicudo
(IST Lisboa)
