Strange and nonstrange baryon spectra in the relativistic interacting quark-diquark model with a Gürsey and Radicati-inspired exchange interaction

The relativistic interacting quark-diquark model, constructed in the framework of point form dynamics, is extended to strange baryons. The strange and nonstrange baryon spectra are calculated and compared with the experimental data.

Figure 1

Comparison between the calculated masses (black lines) of the $3^{*}$ and $4^{*}\mathrm{\Lambda }$ and ${\mathrm{\Lambda }}^{*}$ resonances (up to 2 GeV; from fit 2) and the experimental masses from PDG [17] (blue [gray] boxes).

Figure 2

Comparison between the calculated masses (black lines) of the $3^{*}$ and $4^{*}\mathrm{\Sigma }$ and ${\mathrm{\Sigma }}^{*}$ resonances (up to 2 GeV; from fit 2) and the experimental masses from PDG [17] (blue [gray] boxes).

Figure 3

Comparison between the calculated masses (black lines) of the $3^{*}$ and $4^{*}\mathrm{\Xi }$, ${\mathrm{\Xi }}^{*}$, and $\mathrm{\Omega }$ resonances (up to 2 GeV; from fit 2) and the experimental masses from PDG [17] (blue [gray] boxes).