Abstract :
Bloom–Gilman quark–hadron dualities of proton spin structure functions g1, g2 and gT, 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 View the MathML source and View the MathML source are similar and are expected at about 2 GeV2. Moreover, our results show that the nucleon elastic peak and Δ(1232) resonance remarkably break the quark–hadron dualities.