Isosinglet Scalar Mesons Below 2 GeV and the Scalar Glueball Mass

Details Isosinglet Scalar Mesons Below 2 GeV and the Scalar Glueball Mass Isosinglet Scalar Mesons Below 2 GeV and the Scalar Glueball Mass

2003-02-17

arxiv.org/abs/hep-ph/0302133v2

Int.J.Mod.Phys.A19:2095-2112,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, revtex, 2 figs; numerical work updated, typos corrected, refs added

Scientific paper

10.1142/S0217751X04018695

A collective treatment of the I=0 scalar mesons below 2 GeV [sigma (550), f0(980), f0(1370), f0(1500) and f0(1710)] in a non-linear chiral Lagrangian framework that is constrained by the mass and the partial decay widths of the I=1/2,1 scalars [kappa(900), K0*(1430), a0(980) and a0(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 f0(1370) is studied. Consistency with the available experimental data suggests that the sigma(550) is dominantly a non-strange four-quark state, whereas the sub-structure of other I=0 states are sensitive to the input mass of f0(1370). This investigation estimates the scalar glueball mass in the range 1.47--1.64 GeV.

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