Lineshape of $e^{+}{e}^{-}\to D^{\ast }\bar{D}+c.c.$ and electromagnetic form factor of $D^{\ast }\to D$ transition in the time-like region

Yuan-Jiang Zhang, Qiang Zhao

In this work, we apply the vector meson dominance (VMD) model to extract the electromagnetic time-like form factor of the $D^{\ast }\to D$ transition combining the recent Belle data for…