6533b856fe1ef96bd12b1c11

RESEARCH PRODUCT

Chiral dynamics of baryon resonances and hadrons in a nuclear medium

M. J. Vicente VacasLuis RocaEulogi OsetVolodymyr MagasSubir SarkarD. CabreraAngels Ramos

subject

PhysicsParticle physicsMesonNuclear TheoryHadronNuclear TheoryHigh Energy Physics::PhenomenologyGeneral Physics and AstronomyResonanceSigmaFOS: Physical sciencesFísicaState (functional analysis)LambdaUnitary stateBaryonNuclear Theory (nucl-th)Nuclear Experiment

description

In these lectures I make an introduction to chiral unitary theory applied to the meson baryon interaction and show how several well known resonances are dynamically generated, and others are predicted. Two very recent experiments are analyzed, one of them showing the existence of two $\Lambda(1405)$ states and the other one providing support for the $\Lambda(1520)$ resonance as a quasibound state of $\Sigma(1385) \pi$. The use of chiral Lagrangians to account for the hadronic interaction at the elementary level introduces a new approach to deal with the modification of meson and baryon properties in a nuclear medium. Examples of it for $\bar{K}$, $\eta$ and $\phi$ modification in the nuclear medium are presented.

10.1007/bf02704803http://dx.doi.org/10.1007/BF02704803