Non-perturbaitve effects for the isoscalar light vector $\ddot{I}‰$-meson in charmed meson semileptonic decays

Yin-Long Yang, Fang-Ping Peng, Yan-Ting Yang +2

Motivated by the renewed attention from the recent BESIII experiment on the semileptonic decay $D\to V\ell \hat{I}{½}_{\ell }$, we investigate semileptonic decay $D^{+}\to \ddot{I}‰{\ell }^{+}\hat{I}{½}_{\ell }$…