Semileptonic $Ï$ and $K$ Decays and the Chiral Anomaly at One-loop
arXiv:hep-ph/9302219 · doi:10.1016/0370-2693(93)90058-P
Abstract
We calculate the $O(p^6)$ corrections to the anomalous form factors appearing in $Ï^+$, $K^+ \to e^+ νγ,\ μ^+νγ$ and $K_{l4}$ decays in Chiral Perturbation Theory. The relevant dimension $6$ terms of the lagrangian are evaluated assuming their saturation by the vector meson contribution.
10 pages of LaTeX (+3 figures available on request)