%0 Journal Article
%T $¦Ð\to l¦Í¦Ã$ Form Factors at Two-loop
%A J. Bijnens
%A P. Talavera
%J Physics
%D 1996
%I arXiv
%R 10.1016/S0550-3213(97)00069-2
%X Within Chiral Perturbation Theory (CHPT) we compute the form factors A, V and $\gamma = A/V$ in the $\pi \to \nu l \gamma$ decay to $O(p^6)$. A and $\gamma$ obtain corrections of order 25%.
%U http://arxiv.org/abs/hep-ph/9610269v2