On the parameters of the QCD-motivated potential in the relativistic independent quark model

In the framework of the relativistic independent quark model the parameters of the QCD-motivated static potential and the quark masses are calculated on the basis of the 1−− meson mass spectra. The value of the confining potential coefficient is found to be (0.197±0.005) GeV2 for quark–antiquark interaction independently on their flavours. The dependence of the quasi-Coulombic potential strength on the interaction distance are consistent with the QCD-motivated behaviour. The qq̄-separations are evaluated and the e+e− decay widths are estimated with the help of relativistic modification of the Van Royen–Weisskopf formula.