Workshop for young scientists with research interests focused on physics at FAIR

The Dyson-Schwinger-Bethe-Salpeter-equation approach provides a covariant framework to study mesons, and more generally hadrons, in QCD. I'll discuss both the role of truncations in numerical studies based on this approach, as well as recent results [1-4] for spectroscopy and properties of heavy and light quarkonia with both conventional and exotic-vector quantum numbers. [1] Phys.Rev.D91:034013,2015 [2] Phys.Rev.D91:114004,2015 [3] Phys.Rev.D92:054030,2015 [4] arXiv:1508.07183 [hep-ph]