Nucleon and nuclear spin structure functions
Scopetta, S. · Umnikov, A. Yu. · Atti, C. Ciofi degli · Kaptari, L. P.
Original · EN
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.
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