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Reply to "Comment on `The polarizability of the pion: no conflict between dispersion theory and chiral perturbation theory'"

arXiv:0908.4291 · doi:10.1103/PhysRevC.81.029802

Abstract

We reply to the Comment by Fil'kov and Kashevarov, arXiv:0805.4486 [hep-ph]. We show that the discrepancies between ChPT and dispersion theory, reported for the polarizability of the pion, result from applying dispersion theory to non-analytic functions.