Coupled-channel scattering from lattice QCD
I will discuss recent coupled-channel scattering calculations from the Hadron Spectrum Collaboration. Utilising the variational method with large bases of operators, including those that resemble q-qbar and meson-meson like constructions, many energy levels can be extracted. These spectra are then used with the coupled-channel extensions of Lüscher's finite volume formalism, to determine the infinite volume coupled-channel scattering amplitudes. I will report on recent calculations that have been able to determine resonance poles and channel couplings in several quantum numbers.
Preferred track (if multiple tracks have been selected)
Hadron Spectroscopy and Interactions