2004/08/31 by Francesco Giacosa, F. Giacosa, T. Gutsche +1 · 79 citations
Physics and Astronomy · #Covariant transformation #Glueball #Gluon #High-Energy Particle Collisions Research #Isoscalar #Mathematical physics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quark #Scalar (mathematics) #hep-ph
paper · pdf · doi:10.1103/physrevc.71.025202
published in Physical Review C 71(2) (American Institute of Physics) · 28 pages, 6 figures
openalex publication_date 2005/02/02 · arxiv created 2005/02/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyze the mixing of the scalar glueball with the scalar-isoscalar quarkonia states above 1 GeV in a nonlocal covariant constituent approach. Similarities and differences to the point-particle Klein-Gordon limit and to the quantum mechanical case are elaborated. Model predictions for the two-photon decay rates in the covariant mixing scheme are indicated.