6533b826fe1ef96bd1285225

RESEARCH PRODUCT

Nucleon and nuclear spin structure functions

S. ScopettaA. Yu. UmnikovC. Ciofi Degli AttiL. P. Kaptari

subject

Nuclear Theory (nucl-th)Nuclear Theoryneutron structure functionsfew-body systemsNuclear TheoryFOS: Physical sciencesHigh Energy Physics::ExperimentNuclear Experimentpolarized DISneutron structure functions; polarized DIS; few-body systems

description

Nuclear effects in polarized inelastic electron scattering off polarized $^3He$ and polarized $^2H$ are discussed; in the resonance region, Fermi motion effects are found to be much larger than in deep inelastic scattering. It is shown that improperly describing nuclear dynamics would lead to the extraction of unreliable neutron spin structure functions; on the other hand side, simple and workable equations, relating the Gerasimov -- Drell -- Hearn Integral for the neutron to the corresponding quantity for $^3He$ and $^2H$, are proposed. Nuclear effects in the recent E143 data are estimated by a proper procedure.

yearjournalcountryeditionlanguage
1997-09-08
http://arxiv.org/abs/nucl-th/9709015