Proton spin-spin asymmetries for large angle electron-proton elastic scattering

We consider a model previously developed to describe spin-spin asymmetries in proton-proton large angle elastic scattering and apply it to predict proton spin-spin asymmetries in electron-proton elastic scattering. Our results differ from those commonly expected in a perturbative QCD scheme. The measurement of the spin asymmetries would provide a direct measurement of the two proton elastic form factors and a clean further test of different mechanisms. We comment on some other spin effects