Speaker
Hartmut Schmieden
(University of Bonn)
Description
A leap in our understanding of hadronic structure formation was witnessed during the last decade. The discovery of the $X, Y, Z$ states in the (hidden) charm meson sector first by Belle, and the $P_C$ baryon states by LHCb revealed the existence of multi-quark objects beyond the simple quark-antiquark or 3-quark valence configurations. While the detailed structure of such states is still under debate, still the question arises whether similar configurations may exist in the $uds$-sector of light quarks as well. I will present ideas on why this may be the case, and first results of the BGOOD experiment at the ELSA electron accelerator of Bonn University on baryonic structures which might be interpreted in support of this.
Author
Hartmut Schmieden
(University of Bonn)
