Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-04-06
Phys.Rev.D71:094022,2005
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version accepted by PRD; Numerical results in Tab IV and VI changed due to correction of an error in quoting an experimental d
Scientific paper
10.1103/PhysRevD.71.094022
A coherent study of the production of $f_0^i$ ($i=1$, 2, 3 corresponding to $f_0(1710)$, $f_0(1500)$, and $f_0(1370)$) in $J/\psi\to V f_0 \to V PP$ is reported based on a previously proposed glueball and $Q\bar{Q}$ nonet mixing scheme, and a factorization for the decay of $J/\psi\to V f_0^i$, where $V$ denotes the isoscalar vector mesons $\phi$ and $\omega$, and $P$ denotes pseudoscalar mesons. The results show that the $J/\psi$ decays are very sensitive to the structure of those scalar mesons, and suggest a glueball in the $1.5-1.7$ GeV region, in line with Lattice QCD. The presence of significant glueball mixings in the scalar wavefunctions produces peculiar patterns in the branching ratios for $J/\psi\to V f_0^i\to VPP$, which are in good agreement with the recently published experimental data from the BES collaboration.
Close Frank E.
Zhao Qiang
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