$D_s\to f_0$ form factors and the $D_s^{+}\to {\left[\pi \pi \right]}_{\mathrm{S}}{e}^{+}{\nu }_e$ decay from light-cone sum rules

Shan Cheng, Shu-Lei Zhang

In this paper we revisit $D_s\to f_0$ form factors from the light-cone sum rules with the light meson light-cone distribution amplitudes. The main motivation of this study is the…