■_(u,d,s)~*→ D_(u,d,s)~*V(V = D_(d,s)~(*-), K~(*-), ρ~-) weak decays

Motivated by the rapid development of heavy flavor physics experiments, we study the tree-dominated nonleptonic ■_(u,d,s)~*→ D_(u,d,s)~*V(V = D_(d,s)~(*-), K~(*-), ρ~-) decays within the factorization approach. The relevant transition form factors are calculated by employing the covariant light-front quark model. Helicity amplitudes are calculated and analyzed in detail, and a very clear hierarchical structure |H-0| ≈ 2|H00| |H0-| ≈ |H| |H0+| ≈ |H++| is presented.The branching fractions are computed and discussed. Numerically, the CKM-favored ■*q→ D_q~*ρ~-and D_q~*D_s~(*-) decays have relatively large branching fractions, ■O(10~(-8)), and could be observed by LHC and Belle-II experiments in the future.