The six-quark structure of long-lived $D$-mesons and $\psi /J$

Oleg A. Teplov

The harmonic quarks are applied to the analysis of quark structures of long-lived $D$-mesons and $\psi /J$. In the harmonic quark model the quarks of long-lived mesons (${\pi }^0$, ${\pi }^{\pm }$,…