Using the Resonance Chiral Lagrangian (RChL) we describe the hadronization in various processes, like electron-positron annihilation into pions with additional photon radiation, electron-positron scattering with production of pseudoscalars (pion or eta meson) and tau decays into hadrons. The results are implemented into the Monte Carlo generators FASTERD, EKHARA and TAUOLA. The numerical tests as well as the fit of BaBar data for the tau decay into three pions are discussed.

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