6533b820fe1ef96bd127abe1
RESEARCH PRODUCT
Understanding the Low Energy Hadron Spectrum in a Chiral Quark Cluster Model
Francisco FernándezP. GonzalezA. Valcarcesubject
PhysicsQuarkParticle physicsHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyHadronParity (physics)Spectral lineSchrödinger equationBaryonsymbols.namesakeGoldstone bosonsymbolsNucleondescription
The low energy N and Δ spectra are studied by means of a chiral quark cluster model. We solve the Schrodinger equation in the hyperspherical harmonic approach. The interacting potential includes Goldstone boson exchanges besides the usual one-gluon exchange. The predicted baryonic spectrum is quite reasonable. However, if consistency with the two-baryon sector is required, the observed inversion of the positive and negative parity excitations of the nucleon cannot be obtained. Alternative solutions are discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-01-01 |