Spin Physics in the Resonance Region
Abstract
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 g1(x,Q2) for protons, and on the generalized Gerasimov-Drell-Hearn integral for neutrons are presented as well. The first moment for protons shows a strong Q2 dependence below Q2 = 1 GeV2, and changes sign near Q2 = 0.3 GeV2. Strong double polarization asymmetries are observed in exclusive electroproduction of pions from polarized protons.
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