%0 Journal Article
%T Pion polarizabilities: Theory vs Experiment
%A Mikhail A. Ivanov
%J Physics
%D 2015
%I arXiv
%R 10.1142/S2010194515601040
%X The values of charged pion polarizabilities obtained in the framework of chiral perturbation theory at the level of two-loop accuracy are compared with the experimental result recently reported by COMPASS Collaboration. It is found that the calculated value for the dipole polarizabilities $(\alpha-\beta)_{\pi^\pm}= (5.7\pm 1.0)\times 10^{-4}\,{\rm fm}^3$ fits quite well the experimental result $(\alpha-\beta)_{\pi^\pm} = (4.0 \pm 1.2_{\rm stat} \pm 1.4_{\rm syst}) \times 10^{-4}\,{\rm fm}^3$.
%U http://arxiv.org/abs/1509.05225v1