Computation of correlation matrices for tetraquark candidates with $J^P=0^{+}$ and flavor structure $q_1\overline{q_2}{q}_3{\bar{q}}_3$

Joshua Berlin, Abdou Abdel-Rehim, Constantia Alexandrou +3

The conjecture that several recently observed mesons have a structure, which is not dominated by an ordinary quark-antiquark pair, but by a four-quark structure, is being actively…