Dong, YB (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
Bloom-Gilman quark-hadron dualities of proton spin structure functions g(1), g(2) and g(T), in inelastic resonance region, are analyzed. The contribution of the nucleon elastic peak to the local duality and the local duality of each resonance region are also discussed. It is found that the occurrences of the quark-hadron dualities of g(1)(p) and g(2)(p) are similar and are expected at about 2 GeV2. Moreover, our results show that the nucleon elastic peak and Delta(1232) resonance remarkably break the quark-hadron dualities. (c) 2006 Elsevier B.V. All rights reserved.