Local Duality Predictions for x approximately 1 Structure Functions.
Recent data on the proton F2 structure function in the resonance region suggest that local quark-hadron duality works remarkably well for each of the low-lying resonances, including the elastic, to rather low values of Q2. We derive model-independent relations between structure functions at x approximately 1 and elastic electromagnetic form factors, and predict the x-->1 behavior of nucleon polarization asymmetries and the neutron to proton structure function ratios from available data on nucleon electric and magnetic form factors.
Melnitchouk
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Jefferson Lab, 12000 Jefferson Avenue, Newport News, Virginia 23606 and and Special Research Centre for the Subatomic Structure of Matter, Adelaide University, Adelaide 5005, Australia.