The $B^{+}\to J/\psi \omega K^{+}$ reaction and $D^{\ast }{\bar{D}}^{\ast }$ molecular states

L. R. Dai, G. Y. Wang, X. Chen +3

We study the $B^{+}\to J/\psi \omega K^{+}$ reaction, measured by the LHCb collaboration, and show that it is driven by the presence of two resonances, the $X(3940)$ and $X(3930)$, that are of…