6533b7cffe1ef96bd1258fd9
RESEARCH PRODUCT
The phi NN coupling from chiral loops
Eulogi OsetJ.e. Palomarsubject
QuarkPhysicsCouplingNuclear and High Energy PhysicsParticle physicsNuclear TheoryNuclear TheoryHigh Energy Physics::PhenomenologyFísicaFOS: Physical sciencesVector meson dominanceGauge (firearms)Nuclear Theory (nucl-th)OZI ruleHigh Energy Physics::ExperimentNucleonOrder of magnitudeMixing (physics)description
Starting from effective Lagrangians which combine a gauge formulation of Vector Meson Dominance with Chiral Lagrangians, the coupling of the phi to the nucleon, which is zero at tree level due to the OZI rule, is calculated perturbatively considering loop contributions to the electric and magnetic form factors. We obtain reasonably smaller values for both form factors than those for rho NN and consistent with the expected order of magnitude of the OZI rule violation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-08-07 |