Speaker
Description
Three-body dynamics play an important role within the hadron spectrum, from familiar resonances like the omega meson to more exotic states such as the recently-discovered T_{cc} tetraquark candidate. The complete Lüscher workflow has been formalized for a growing number of three-hadron systems, and lattice QCD calculations of these systems are underway. Given a set of lattice-determined K-matrices, the infinite-volume partial-wave scattering amplitudes are obtained from integral equations that are asymmetric with respect to the choice of spectator. We present a concluding step in this workflow, in which the asymmetric amplitudes are symmetrized. We apply the symmetrization procedure to a toy-model three-pion amplitude with lattice QCD input and, using Dalitz plots, demonstrate that the resulting symmetrized amplitudes exhibit the expected symmetries of a three-pion interaction.