Four-Quark States and Nucleon-Antinucleon Annihilation within the Quark Model with Instanton Induced Interaction

A. E. Dorokhov, N. I. Kochelev, Yu. A. Zubov

The spectrum of $q^2{\bar{q}}^2,J^p=0^{+},2^{+}$ mesons is discussed. We have shown that due to instanton - induced forces the physical states are strong mixtures of the $S{U}_f(3)$ group…