6533b82dfe1ef96bd1291d84

RESEARCH PRODUCT

Dynamical generation of hyperon resonances

Eulogi OsetC. BennholdAngels RamosJosé Antonio OllerDaisuke JidoUlf-g. Meißner

subject

PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryScatteringHigh Energy Physics::LatticeNuclear TheoryHigh Energy Physics::PhenomenologyHyperonResonanceFOS: Physical sciencesFísicaStrangenessNuclear physicsBaryonNuclear Theory (nucl-th)Matrix (mathematics)Symmetry breakingSinglet stateNuclear Experiment

description

In this talk we report on how, using a chiral unitary approach for the meson--baryon interactions, two octets of $J^{\pi}=1/2^-$ baryon states and a singlet are generated dynamically, resulting in the case of strangeness $S=-1$ in two poles of the scattering matrix close to the nominal $\Lambda(1405)$ resonance. We suggest experiments which could show evidence for the existence of these states.

10.1016/j.nuclphysa.2005.01.003http://hdl.handle.net/10550/46942