2009 - Pushing the limits

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Browsing 2009 - Pushing the limits by Author "Londergan, J.T."

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    QCD evolution of the spin structure functions of the neutron and proton
    (American Physical Society, 1990) Schreiber, A.W.; Thomas, A.W.; Londergan, J.T.
    Models of the long-distance behavior of QCD can be used to make predictions for the twist-two piece of the current correlation function appearing in deep-inelastic scattering. The connection between the model predictions, valid at a four-momentum transfer squared Q2 of the order of 1 (GeV/c)2, and the data, collected at much higher Q2, is provided by perturbative QCD. We present here the details of a method, previously used for spin-averaged lepton scattering, applied to the spin-dependent case. We then use the method to make predictions for the spin structure functions gprotonl and gneutronl.