arXiv:0908.4291·v1·High Energy Physics — Phenomenology
Reply to "Comment on `The polarizability of the pion: no conflict between dispersion theory and chiral perturbation theory'"
B. Pasquini (Pavia U. & INFN, Pavia)🇮🇹 · D. Drechsel🇩🇪 · S. Scherer (Mainz U., Inst. Kernphys.)🇩🇪
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.