Exotic $T_{csJ}^{\ast }$ and $T_{c\bar{s}J}^{\ast }$ states and coupled-channel scattering at the $SU(3)$ flavour symmetric point from lattice QCD

J. Daniel E. Yeo, Christopher E. Thomas, David J. Wilson

Motivated by recent experimental observations of the flavour-exotic $T_{cs0}^{\ast }(2870{)}^0$ and $T_{c\bar{s}0}^{\ast }(2900)$, we present the first lattice QCD study of coupled-channel scatt…