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RESEARCH PRODUCT

The Generalized Gerasimov-Drell-Hearn Integral and the Spin Structure of the Nucleon

L. TiatorDieter DrechselGastão KreinS.s. Kamalov

subject

PhysicsNuclear and High Energy PhysicsParticle physicsMeson productionNuclear TheoryMomentum transferNuclear TheoryFOS: Physical sciencesSpin structureUnitary stateResonance (particle physics)Nuclear Theory (nucl-th)Nuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::ExperimentNucleonNuclear ExperimentNuclear theory

description

The spin structure functions g1 and g2 have been calculated in the resonance region and for small and intermediate momentum transfer. The calculation is based on a gauge-invariant and unitary model for one-pion photo- and electroproduction. The predictions of the model agree with the asymmetries and the spin sturcture functions recently measured at SLAC, and the first moments of the calculated spin structure functions fullfil the Gerasimov-Drell-Hearn and Burkhardt-Cottingham sum rules within an error of typically 5-10 %.

10.1103/physrevd.59.094021http://arxiv.org/abs/hep-ph/9810480