Speaker
Ferenc Pittler
(Eötvös University)
Description
Chiral unitary models predict an interchange of the two trajectories of the $\Lambda(1380)$ and the $\Lambda(1405)$ away from the SU(3) limit at next-to-leading order. Recently the BaryonScattering collaboration has performed a coupled channel ($\pi\Sigma-\bar{K}N$) lattice spectral analysis in the region of $\Lambda(1405)$ for $m_\pi~\sim 200$MeV pion mass. In the present contribution we reanalyze the energy levels using a coupled-channel chiral approach constrained by experimental data. In addition we investigate the contributions of heavy channels and higher partial waves.
Primary author
Ferenc Pittler
(Eötvös University)
Co-author
Prof.
Maxim Mai
(Helmholtz-Institut für Strahlen- und Kernphysik of the University Bonn, George Washington University)
