Unitary chiral dynamics in J/Psi to VPP decays and the role of scalar mesons

Details Unitary chiral dynamics in J/Psi to VPP decays and the role of scalar mesons Unitary chiral dynamics in J/Psi to VPP decays and the role of scalar mesons

2004-05-24

arxiv.org/abs/hep-ph/0405228v1

Nucl.Phys. A744 (2004) 127-155

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 10 figures

Scientific paper

10.1016/j.nuclphysa.2004.08.004

We make a theoretical study of the J/Psi 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/\Psi\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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