24th European Conference on Few-Body Problems in Physics

Heavy-Baryon Spectroscopy

5 Sept 2019, 14:00

25m

University of Surrey

Talk Hadrons and Particles Parallel Session Thursday: Hadrons and Particles

Speaker

Prof. Willibald Plessas (Institute of Physics, University of Graz)

Description

We present excitation spectra for heavy baryons - containing $c$ and $b$ flavors - calculated from a universal relativistic constituent-quark model valid for all baryons. The three-quark system is solved along modified Faddeev equations adapted to treat long-range interactions, here in particular the confinement. The hyperfine interaction is furnished by Goldstone-boson exchange. The full interaction is represented by a Poincaré-invariant mass operator.
Most prominently we focus on the spectra of charm and beauty baryons, which have recently become amenable to new measurements especially at LHCb. Beyond the ground states of corresponding $\mathrm{\Lambda }$, $\mathrm{\Sigma }$, $\mathrm{\Xi }$, and $\mathrm{\Omega }$ baryons we also predict their first few excitations, which are expected to be manifested by future experiments.

Presentation materials

Plessas_EFB24.pdf