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QCD Coulomb gauge approach to exotic hadrons |
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| Authors: | S. R. Cotanch I. J. General P. Wang |
| Affiliation: | (1) Department of Physics, North Carolina State University, 27695-8202 Raleigh, NC, USA |
| Abstract: | The Coulomb gauge Hamiltonian model is used to calculate masses for selected JPC states consisting of exotic combinations of quarks and gluons: ggg glueballs (oddballs), qˉg hybrid mesons and qˉqˉ 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 1.4GeV consistent with the observed π(1400). |
| Keywords: | 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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