6533b870fe1ef96bd12d0642

RESEARCH PRODUCT

Microscopic description of the nucleon- Delta interaction in the quark cluster model.

P. GonzalezP. GonzalezA. ValcarceA. ValcarceV. | VentoV. | VentoFrancisco FernándezFrancisco Fernández

subject

QuarkPhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyNuclear TheoryFew-body systemsBottom quarkDelta baryonBaryonsymbols.namesakePauli exclusion principlesymbolsCluster (physics)High Energy Physics::ExperimentNuclear ExperimentNucleon

description

By using a nonrelativistic quark cluster model to describe baryonic systems, we generate a nucleon-{Delta} potential from the elementary interaction between constituents. The basic quark-quark potential used provides, when applied to the nucleon-nucleon system, an adequate description of the scattering phase shifts, the deuteron properties and the nonstrange baryonic spectroscopy. Special attention is paid to the short-range behavior of the interaction and its connection to the quark Pauli principle. This establishes a conceptual difference with meson-exchange models where the interaction, due to the lack of data, is not even well defined.

10.1103/physrevc.52.38https://pubmed.ncbi.nlm.nih.gov/9970480