The $d′$-dibaryon in a colored cluster model Available to Purchase

We calculate the mass and structure of a $JP=0−,$ $T=0$ six-quark system using a colored diquark-tetraquark cluster wave function and a nonrelativistic quark model Hamiltonian. The calculated mass is some 350 MeV above the empirical value if the same confinement strength as in the nucleon is used. If the effective two-body confinement strength is weaker in a compound six-quark system than in a single baryon, as expected from a simple harmonic oscillator model, one obtains $Md′=2092 MeV$ close to experiment.