The $X_0(2900)$ and its heavy quark spin partners in molecular picture

Mei-Wei Hu, Xue-Yi Lao, Pan Ling +1

The $X_0(2900)$ observed by the LHCb Collaboration recently in the $D^{-}{K}^{+}$ invariant mass of the $B^{+}\to D^{+}{D}^{-}{K}^{+}$ process is the first exotic candidate with four different flavo…