2003/02/28 by Amir H. Fariborz, AMIR H. FARIBORZ · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-lat #hep-ph
paper · pdf · doi:10.1142/s0217751x04018695
published as Int.J.Mod.Phys.A19:2095-2112,2004 · 12 pages, revtex, 2 figs; numerical work updated, typos corrected, refs added
arxiv created 2003/09/07 · openalex publication_date 2004/05/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A collective treatment of the I=0 scalar mesons below 2 GeV [σ(550), f 0 (980), f 0 (1370), f 0 (1500) and f 0 (1710)] in a nonlinear chiral Lagrangian framework that is constrained by the mass and the partial decay widths of the I=1/2,1 scalars [κ(900), [Formula: see text], a 0 (980) and a 0 (1450)] is presented. The sub-structure of these states in terms of two and four quark components, as well as a glueball component is explored, and its correlation with the mass of f 0 (1370) is studied. Consistency with the available experimental data suggests that the σ(550) is dominantly a nonstrange four-quark state, whereas the sub-structure of other I=0 states are sensitive to the input mass of f 0 (1370). This investigation estimates the scalar glueball mass in the range 1.47–1.64 GeV.