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Llanes Estrada, Felipe José ; Cotanch, Stephen R. ; Szczepaniak, Adam P. ; Swanson, Eric S. | Springer-Verlag | 2004-03We review theoretical calculations for the pseudoscalar vector meson hyperfine splitting with no open flavor and also report a many body field theoretical effort to assess the impact of chiral symmetry in the choice of effective potentials for r[...]texto impreso
We report a relativistic many-body calculation for the hybrid meson spectrum utilizing a QCD inspired Coulomb gauge Hamiltonian. Our approach is comprehensive and unifies the quark and gluon sectors. The vacuum and quasiparticle properties are g[...]texto impreso
Llanes Estrada, Felipe José ; General, Ignacio J. ; Wang, Ping ; Cotanch, Stephen R. | Elsevier Science BV | 2007-09-30Highlights in the search for nonconventional (non-q.q) meson states are the ?1(1400) and ?1(1600) exotic candidates. Should they exist, mounting theoretical arguments suggest that they are tetraquark molecular resonances excitable by meson resca[...]texto impreso
Results from an extensive relativistic many-body analysis utilizing a realistic effective QCD Hamiltonian are presented for the meson spectrum. A comparative numerical study of the BCS, Tamm-Dancoff (TDA), and RPA treatments provides new, signif[...]texto impreso
Using a field theoretical, QCD inspired Hamiltonian formulated in the Coulomb gauge, relativistic many-body calculations are reported which reproduce the semiquantitative features of the observed meson and lattice glueball spectrums. Dynamical c[...]texto impreso
Llanes Estrada, Felipe José ; Cotanch, Stephen R. ; Bicudo, Pedro J. ; Ribeiro, J. Emilio ; Szczepaniak, Adam | Elsevier Science BV | 2002-11-04Implementing many-body techniques successful in other fields, we report a glueball Regge trajectory emerging from diagonalizing a confining Coulomb gauge Hamiltonian for constituent gluons. Through a BCS vacuum ansatz and gap equation, the dress[...]texto impreso
A relativistic many-body calculation for an effective QCD Hamiltonians reported for exotic and charmed hybrid mesons. The nonexotic J(PC) = 1(--) charmonium spectrum now resolves the anonymous overpopulation of observed J/psi states. The exotic [...]texto impreso
We represent QCD at the hadronic scale by means of an effective Hamiltonian, H, formulated in the Coulomb gauge. As in the Nambu-Jona-Lasinio model, chiral symmetry is explicitly broken, however our approach is renormalizable and also includes c[...]
