π lνγ Form Factors at Two-loop
J. Bijnens, P. Talavera
hep-pharXiv:hep-ph/9610269
Abstract
Within Chiral Perturbation Theory (CHPT) we compute the form factors A, V and γ= A/V in the π νl γ decay to O(p6). A and γ obtain corrections of order 25%.
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