Unitary chiral dynamics in $J/Ψ$ decays into $VPP$ and the role of the scalar mesons

Details Unitary chiral dynamics in $J/Ψ$ decays into $VPP$ and the role of the scalar mesons Unitary chiral dynamics in $J/Ψ$ decays into $VPP$ and the role of the scalar mesons

2004-10-29

arxiv.org/abs/hep-ph/0410405v1

Int.J.Mod.Phys. A20 (2005) 1897-1900

Physics

High Energy Physics

High Energy Physics - Phenomenology

Prepared for the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon

Scientific paper

10.1142/S0217751X0502358X

We make a theoretical study of the $\J$ decays into $\omega\pi\pi$, $\phi\pi\pi$, $\omega K \bar{K}$ and $\phi K\bar{K}$ using the techniques of the chiral unitary approach stressing the important role of the scalar resonances dynamically generated through the final state interaction of the two pseudoscalar mesons. We also discuss the importance of new mechanisms with intermediate exchange of vector and axial-vector mesons and the role played by the OZI rule in the $\J\phi\pi\pi$ vertex, quantifying its effects. The results nicely reproduce the experimental data for the invariant mass distributions in all the channels considered.

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