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We study the transition form factors of the light mesons in the kinematics,where one photon is real and other is virtual. Using the dispersive approach toaxial anomaly we show that the axial anomaly in this case reveals itself as acollective effect of meson spectrum. This allows us to get the relation betweenpossible corrections to continuum and to lower states within QCD method whichdoes not rely on factorization hypothesis. We show, relying on the recent dataof BaBar Collaboration, that the relative correction to continuum is quitesmall, and small correction to continuum can dramatically change the pion formfactor.

Axial anomaly as a collective effect of meson spectrum