Speaker
Prof.
Christian Fischer
(University of Giessen)
Description
In this talk I will give an overview on recent results on the spectrum and properties of
conventional mesons and exotic mesons (glueballs and four-quark states) as obtained in
the framework of Dyson-Schwinger and Bethe-Salpeter equations with particular focus on
states with the quantum numbers of a scalar.
I will discuss the spectrum of (quenched) glueballs and compare with results from lattice
gauge theory. For four-quark systems I will summarize results for light quarks and discuss
mixing effects with conventional meson states. I will also highlight recent progress on
discriminating between four-quark, molecule or hadro-quarkonium configurations in heavy-light
systems.
Primary author
Prof.
Christian Fischer
(University of Giessen)
