1999/06/14 by Felipe J. Llanes-Estrada, Felipe J. Llanes–Estrada, Stephen R. Cotanch · 97 citations
Physics and Astronomy · #Boson #Eta meson #Glueball #Goldstone boson #Hadron #Hamiltonian (control theory) #High-Energy Particle Collisions Research #Lattice QCD #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #QCD vacuum #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #hep-ph
paper · pdf · doi:10.1103/physrevlett.84.1102
published in Physical Review Letters 84(6), 1102-1105 (American Physical Society) · 4 RevTex pages plus two figures. Submitted to Phys.Rev.Lett
arxiv created 1999/06/14 · openalex publication_date 2000/02/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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, significant insight into the condensate structure of the vacuum, the chiral symmetry governance of the pion, and the meson spin, orbital, and flavor mass splitting contributions. In contrast to a previous glueball application, substantial quantitative differences are computed between TDA and RPA for the light quark sector with the pion emerging as a Goldstone boson only in the RPA.