Proton and neutron polarized structure functions from low to high Q**2

Details Proton and neutron polarized structure functions from low to high Q**2 Proton and neutron polarized structure functions from low to high Q**2

2002-12-06

arxiv.org/abs/nucl-th/0212031v1

Physics

Nuclear Physics

Nuclear Theory

Proceedings of the II International Symposium on the Gerasimov-Drell-Hearn sum rule and the spin structure of the nucleon, Gen

Scientific paper

Phenomenological parameterizations of proton and neutron polarized structure functions, g1p and g1n, are developed for x > 0.02 using deep inelastic data up to ~ 50 (GeV/c)**2 as well as available experimental results on photo- and electro-production of nucleon resonances. The generalized Drell-Hearn-Gerasimov sum rules are predicted from low to high values of Q**2 and compared with proton and neutron data. Furthermore, the main results of the power correction analysis carried out on the Q**2-behavior of the polarized proton Nachtmann moments, evaluated using our parameterization of g1p, are briefly summarized.

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