2006/09/30 by Ignacio J. General, Stephen R. Cotanch, Felipe J. Llanes–Estrada +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-007-0298-3
published as Eur.Phys.J.C51:347-358,2007 · 13 pages, 10 figures. Two figures corrected
arxiv created 2006/10/03 · openalex publication_date 2007/05/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
An effective Coulomb gauge Hamiltonian, Heff, is used to calculate the light (u-ubar-g), strange (s-sbar-g) and charmed (c-cbar-g) hybrid meson spectra. For the same two parameter Heff providing glueball masses consistent with lattice results and a good description of the observed u,d,s and c quark mesons, a large-scale variational treatment predicts the lightest hybrid has JPC=0++ and mass 2100 MeV. The lightest exotic 1-+ state is just above 2200 MeV, near the upper limit of lattice and Flux Tube predictions. These theoretical formulations all indicate the observed 1-+ pi1(1600) and, more clearly, pi1(1400) are not hybrid states. The Coulomb gauge approach further predicts that in the strange and charmed sectors, respectively, the ground state hybrids have 1+- with masses 2125 and 3830 MeV, while the first exotic 1-+ states are at 2395 and 4020 MeV. Finally, using our hybrid wavefunctions, dimensional counting rules and the Franck-Condon principle, novel experimental signatures are presented to assist light and heavy hybrid meson searches.