The d'-dibaryon in a colored cluster model

Abstract

We calculate the mass and structure of a J^P=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 M_d' = 2092 MeV close to experiment.

Comments: 6 pages, Revtex, 2 ps-figures included, to appear in the Proceedings of the '6th Conference on the Intersections of Particle and Nuclear Physics' Big Sky, 1997