Speaker
Fernando Romero López
(Uni Bern)
Description
In this talk, I review recent lattice-QCD results on meson-baryon spectroscopy. In particular, I present new results from the Baryon Scattering Collaboration for the $\Delta(1232)$ and $\Lambda(1405)$, obtained on an ensemble with $M_\pi \simeq 200$ MeV. For the $\Lambda(1405)$ channel, we find evidence for a two-pole structure. I also present a Bayesian analysis of the $\Lambda(1405)$ system that provides a more robust quantification of parametrization uncertainty and further supports the two-pole interpretation.
Author
Fernando Romero López
(Uni Bern)