Mass spectra of orbitally excited charmonium in a non relativistic quark model with an instanton potential

Charmonia are bound states of a charm and an anticharm quark (cc-bar), and represent an important testing ground for the properties of the strong interaction. Studies of charmonia production can improve our understanding of heavy quark production and the formation of bound states. The exploration and understanding of the substructure of hadrons, presented in terms of quarks and gluons by quantum chromodynamics (QCD), has lead to a considerable progress in the study of charmonium states