Isospin breaking, coupled-channel effects, and X(3872)

Ning Li, Shi-Lin Zhu

We re-investigate the possibility of X(3872) as a $D{\bar{D}}^{\ast }$ molecule with $J^{PC}=1^{++}$ within the framework of both the one-pion-exchange (OPE) model and the one-boson-exchan…