6533b7d0fe1ef96bd125baa1
RESEARCH PRODUCT
DYNAMICALLY GENERATED RESONANCES IN THE CHIRAL UNITARY APPROACH TO MESON BARYON INTERACTION
E. OsetS. SarkarM. J. Vicente VacasA. RamosD. JidoJ. A. OllerU. G. Meissnersubject
PhysicsNuclear and High Energy PhysicsParticle physicsOctetMesonHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaAstronomy and AstrophysicsStrangenessLambdaUnitary stateAtomic and Molecular Physics and OpticsBaryonHigh Energy Physics - PhenomenologyMatrix (mathematics)High Energy Physics - Phenomenology (hep-ph)Exotic baryonHigh Energy Physics::ExperimentNuclear Experimentdescription
In this talk we report on the use of a chiral unitary approach for the interaction of the octets of meson and baryon and the octet of mesons with the decuplet of baryons. Two octets of $J^{\pi}=1/2^-$ baryon states and a singlet are generated dynamically in the first case, resulting in the case of strangeness $S=-1$ in two poles of the scattering matrix close to the nominal $\Lambda(1405)$ resonance. In the second case many resonances are also generated, among them an exotic baryon with S=1 corresponding to a $\Delta K$ resonance. We make suggestions of experiments which could show evidence for the existence of these states.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-11-02 | International Journal of Modern Physics A |