6533b82bfe1ef96bd128d8fc

RESEARCH PRODUCT

Parton distributions in a constituent quark scenario

Marco TrainiVicente VentoSergio Scopetta

subject

QuarkPhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::LatticeStructure functionNuclear TheoryHigh Energy Physics::PhenomenologyFOS: Physical sciencesConstituent quarkFísicaPartonConvolutionMomentumHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Simple (abstract algebra)High Energy Physics::ExperimentNucleon

description

A simple picture of the constituent quark as a composite system of point-like partons is used to construct the unpolarized and polarized parton distributions by a convolution between constituent quark momentum distributions and constituent quark structure functions. We achieve good agreement with experiments in the unpolarized, as well as, in the polarized case. When our results are compared with similar calculations using non-composite constituent quarks, the accord with the experiments of the present scheme is impressive. We conclude that DIS data are consistent with a low energy scenario dominated by composite constituents of the nucleon.

http://www.scopus.com/inward/record.url?eid=2-s2.0-0034642665&partnerID=MN8TOARS