Numerical analysis of the production of $D^{(*)}(3000)$, $D_{sJ}(3040)$   and their partners through the semileptonic decays of $B_{(s)}$ mesons in   terms of the light-front quark model
  Inspired by the newly observed $D^{(*)}(3000)$, and $D_{sJ}(3040)$ states, in this work we study the production of $D^{(*)}(3000)$, $D_{sJ}(3040)$ and their partners through the semileptonic decays of $B_{(s)}$ mesons, where the light-front Quark model is applied to the whole calculation. Our numerical results indicate that the $B_{(s)}$ semileptonic decays into the $2P$ states of the charmed or charmed-strange meson family have considerable branching ratios, which shows that these semileptonic decays can be accessible at future experiments, especially LHCb and the forthcoming Belle II. 
Hao Xu, Qi Huang, Hong-Wei Ke and Xiang Liu
hep-ph hep-ex