6533b7d5fe1ef96bd1264594
RESEARCH PRODUCT
Unitary chiral dynamics in decays and the role of scalar mesons
J.e. PalomarLuis RocaEulogi OsetH. C. Chiangsubject
PhysicsPseudoscalarNuclear and High Energy PhysicsParticle physicsOZI ruleMesonHigh Energy Physics::PhenomenologyMass spectrumHigh Energy Physics::ExperimentInvariant massScalar mesonUnitary stateVertex (geometry)description
We make a theoretical study of the J/psi decays into omegapipi, phipipi, omegaK (K) over bar and phiK (K) over bar 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 phipipi vertex, quantifying its effects. The results nicely reproduce the experimental data for the invariant mass distributions in all the channels considered. (C) 2004 Elsevier B.V. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-11-01 | Nuclear Physics A |