$X(3872)$ Relevant $D{\bar{D}}^{\ast }$ Scattering in $N_f=2$ Lattice QCD

Haozheng Li, Chunjiang Shi, Ying Chen +4

We study the $S$-wave $D{\bar{D}}^{\ast }(I=0)$ scattering at four different pion masses $m_{\pi }$ ranging from 250 MeV to 417 MeV from $N_f=2$ lattice QCD. Three energy levels $E_{2,3,4}$ are…