INVESTIGADORES
GENERAL Ignacio Jose
artículos
Título:
QCD Coulomb gauge approach to exotic hadrons
Autor/es:
S. R. COTANCH; I. J. GENERAL; P. WANG
Revista:
EUROPEAN PHYSICAL JOURNAL A - HADRONS AND NUCLEI
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2007 p. 656 - 661
ISSN:
1434-6001
Resumen:
The Coulomb gauge Hamiltonian model is udes to calculate the masses for selected J^(PC) states consisting of exotic combinations of quarks and gluons: ggg glueballs (oddballs), q qbat g hybrid mesons and q qbar q qbar 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 tetraquarkstate mass with these exotic quantum numbers is predicted arouond 1.4 GeV consistent with the observed pi(1400).
