Speaker
Prof.
Francesco Knechtli
(University of Wuppertal)
Description
We review selected lattice results on the charmonium spectrum and first attempts to
search for the existence of exotic states. The hadro-quarkonium model was proposed
to interpret some of the exotic states as a quarkonium core inside a hadron. We present a
lattice study of the hadro-quarkonium model in the limit of static quarks. The charm
quark decouples in low energy observables and binding energies of charmonium. In a model
calculation we are able to evaluate the corrections to decoupling of the charm quark
in the continuum.
Primary author
Prof.
Francesco Knechtli
(University of Wuppertal)
