6533b86ffe1ef96bd12ce5d5

RESEARCH PRODUCT

Parton polarization and constituent quarks

Marco TrainiMarco TrainiMichela RopeleMichela RopeleVicente Vento

subject

QuarkPhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::PhenomenologyNuclear TheoryPartonPolarization (waves)GluonNuclear physicsDeuteriumNeutronNuclear ExperimentGround stateNucleon

description

Abstract A systematic study of the polarized-parton distributions is presented and related to the properties of the constituent quarks. The effects of breaking SU(6) symmetry are emphasized and the Isgur-Karl constituent model is discussed in detail. The results on the proton, neutron and deuteron structure functions are compared with the recent experimental data, and the role of the gluon polarization is pointed out. The role of the D-state admixture in the nucleon ground state is also investigated.

https://doi.org/10.1016/0375-9474(94)00526-s