Decay Spectrum of $K^{+}\to e^{+}{\nu }_e\gamma$

C. H. Chen, C. Q. Geng, C. C. Lih

The form factors of the $K^{+}\to \gamma$ transition are studied in the light-front quark model and chiral perturbation theory of $O(p^6)$. The decay spectrum of $K^{+}\to e^{+}{\nu }_e\gamma$, do…