QCD Coulomb Gauge Approach to Exotic Hadrons
نویسندگان
چکیده
The Coulomb gauge Hamiltonian model is used to calculate masses for selected J states consisting of exotic combinations of quarks and gluons: ggg glueballs (oddballs), qq̄g hybrid mesons and qq̄qq̄ 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 2.2 GeV while the lightest tetraquark state mass with these exotic quantum numbers is predicted around 1.4 GeV consistent with the observed π(1400). PACS. 12.38.Lg Other nonperturbative calculations – 12.39.Ki Relativistic quark model – 12.39.Mk Glueball and nonstandard multi-quark/gluon states – 12.40.Yx Hadron mass models and calculations
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تاریخ انتشار 2006