Form factors of mesons and meson resonances at small and intermediate momentum transfers Q2 in the relativistic quark model

The structure of the pion wave function is investigated in the relativistic quark model as well as the predictions for the form factors of both π, rho, A1-mesons, ω → πγ and A1 → πγ transitions are obtained. The results for the form factors of π, A1-mesons, ω → πγ transition and the form factor of A1 → πγ transtion are in good qualitative agreement with the QCD dispersion sum rule predictions. The results for the rho-meson form factors approximately twice as much exceed the predictions of the QCD sum rules