Symmetries of quark-antiquark scattering and meson nonets mass-splitting@@@Симметрии рассеяния кварков-антикварков и массовое расщепление мезонных нонетов

Linear mass formulae for meson nonets are obtained. The derivation is based on equalities among quark-antiquark partial wave scattering amplitudes obtained in the preceding paper, and on assumptions concerning its analytical properties. The resulting formulae are in very good agreement with experimental mass-values of the 1− and 2+ meson nonets, but fail completely for pseudoscalar mesons.