6533b852fe1ef96bd12ab884
RESEARCH PRODUCT
Unitary chiral dynamics in J/Psi decays into VPP and the role of the scalar mesons
J.e. PalomarLuis RocaEulogi OsetH. C. Chiangsubject
PhysicsNuclear and High Energy PhysicsParticle physicsMesonScalar (mathematics)Nuclear TheoryHigh Energy Physics::PhenomenologyFísicaAstronomy and AstrophysicsState (functional analysis)Unitary stateAtomic and Molecular Physics and OpticsPseudoscalarHigh Energy Physics - PhenomenologyOZI ruleVertex (curve)Invariant massHigh Energy Physics::Experimentdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-10-29 |