Aleš Cieply: "Λ(1405): what do we learn from the chiral symmetry and from the experimental data on K¯N reactions and πΣ mass distributions"

Monday 23 Jan 2023, 16:15 → 17:15 Europe/Berlin

Nußallee 14-16/3.013 (HISKP) - Seminar Room II (HISKP)

Speaker:   Aleš Cieply (Rež)

Title:         $\mathrm{\Lambda }(1405)$: what do we learn from the chiral symmetry and from the experimental data on $\overline{K}N$ reactions and $\pi \mathrm{\Sigma }$ mass distributions

Abstract:    The $\mathrm{\Lambda }(1405)$ has already a long history but is still getting our attention reflecting new theoretical and experimental developments. The chirally motivated coupled channel models on meson-baryon interactions predict two dynamically generated poles in the $\mathrm{\Lambda }(1405)$ region but the available experimental data on $\overline{K}N$ reactions and $\pi \mathrm{\Sigma }$ mass distributions do not provide a conclusive picture on the matter. In the talk, we will present our recent results related to the pole-nature of the $\mathrm{\Lambda }(1405)$ and discuss the model dependence observed when interpreting the mentioned experimental data.