Shallow Bound States and Hints for Broad Resonances with Quark Content $\bar{b}\bar{c}ud$ in $B$-$\bar{D}$ and $B^{\ast }$-$\bar{D}$ Scattering from Lattice QCD

Constantia Alexandrou, Jacob Finkenrath, Theodoros Leontiou +3

We present the first determination of the energy dependence of the $B$-$\bar{D}$ and $B^{\ast }$-$\bar{D}$ isospin-0, $S$-wave scattering amplitudes both below and above the thresholds u…