2007/10/23 by Chun Liu · 1 citation
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/s10052-007-0471-8
published as Eur.Phys.J.C53:413-419,2008 · 16 pages, 3 figures
arxiv created 2007/10/23 · openalex publication_date 2007/12/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
From the large-Nc QCD point of view, baryonia, tetra-quark states, hybrids, and glueballs are studied. The existence of these states is argued for. They are constructed from baryons. In Nf=1 large Nc QCD, a baryonium is always identical to a glueball with Nc valence gluons. The ground state 0-+ glueball has a mass about 2450 MeV. f0(1710) is identified as the lowest 0++ glueball. The lowest four-quark nonet should be f0(1370), a0(1450), K^*0(1430) and f0(1500). Combining with the heavy quark effective theory, spectra of heavy baryonia and heavy tetra-quark states are predicted. 1/Nc corrections are discussed.