Measurement of structure dependent radiative $K^{+}\to e^{+}\nu \gamma$ decays using stopped positive kaons

H. Ito, A. Kobayashi, S. Bianchin +24

The structure dependent radiative $K^{+}\to e^{+}\nu \gamma$ ($K_{e2\gamma }^{\mathrm{S}{\mathrm{D}}^{+}}$) decay was investigated with stopped positive kaons. The $e^{+}$ momentum spectra containing 574$\pm$…