  The narrow peak recently found in various pionic double charge exchange (DCX)
cross sections can be explained by the assumption of a universal resonance at
2065 MeV, called d'. We calculate the mass of a six-quark system with J^P=0^-,
T=0 quantum numbers employing a cluster model and a shell model basis to
diagonalize the nonrelativistic quark model Hamiltonian.
