Higher-twist corrections to $D\to \pi ,K$ form factors from light-cone sum rules

Long-Sheng Lu, Yong-Kang Huang, Xuan-Heng Zhang

We calculate the $D\to P$ transition form factors within the framework of the light-cone QCD sum rules (LCSR) with the $D$-meson light-cone distribution amplitudes (LCDAs). The nex…