Spin Physics in the Resonance Region

Details Spin Physics in the Resonance Region Spin Physics in the Resonance Region

2001-08-24

arxiv.org/abs/nucl-ex/0108023v1

Nucl.Phys.A699:261-269,2002

Physics

Nuclear Physics

Nuclear Experiment

9 pages, 6 figures, Talk presented at the 3rd International Conference on Perspectives in Hadronic Physics, Trieste May 7-11,

Scientific paper

10.1016/S0375-9474(01)01502-0

Recent results from Jefferson Lab on measurement of inclusive double polarization asymmetries in the nucleon resonance region are discussed. Preliminary results on the first moment of the structure function g_1(x,Q^2) for protons, and on the generalized Gerasimov-Drell-Hearn integral for neutrons are presented as well. The first moment for protons shows a strong Q^2 dependence below Q^2 = 1 GeV^2, and changes sign near Q^2 = 0.3 GeV^2. Strong double polarization asymmetries are observed in exclusive electroproduction of pions from polarized protons.

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