We study I=0 quarkonium resonances decaying into pairs of heavy-light mesons using static-static-light-light potentials from lattice QCD. To this end, we solve a coupled channel Schr\"odinger equation with a confined quarkonium channel and channels with a heavy-light meson pair to compute phase shifts and \mboxT matrix poles for the lightest decay channel. We discuss our results for S, P, D and F wave states in the context of corresponding experimental results, in particular for Υ(10753) and Υ(10860).
@article{arxiv.2108.08100,
title = {Bottomonium resonances from lattice QCD static-static-light-light potentials},
author = {Lasse Mueller and Pedro Bicudo and Nuno Cardoso and Marc Wagner},
journal= {arXiv preprint arXiv:2108.08100},
year = {2022}
}
Comments
9 pages, 2 figures, talk given at the 38th International Symposium on Lattice Field Theory (LATTICE2021), 26th-30th July 2021, Zoom/Gather@Massachusetts Institute of Technology, removed $k$ and $k_s$ prefactors in the Schroedinger equations (6) and (13) and in the boundary conditions (10) and (11)