QCD Coulomb gauge approach to exotic hadrons

摘要

The Coulomb gauge Hamiltonian model is used to calculate masses for selected J(PC) states consisting of exotic combinations of quarks and gluons: ggg glueballs (oddballs), q(q) over barg hybrid mesons and q(q) over bar q(q) over bar tetraquark systems. An odderon Regge trajectory is computed for the J(--) glueballs with intercept much smaller than the pomeron, explaining its nonobservation. The lowest 1(-+) hybrid-meson mass is found to be just above 2.2GeV while the lightest tetraquark state mass with these exotic quantum numbers is predicted around 1.4 GeV consistent with the observed pi(1400).