Hadronic Component of the Photon Spin Dependent Structure Function g1γ from QCD
Abstract
We calculate the spin dependent structure function of the polarized virtual photon g1γ(x,Q2,p2), especially its hadronic part, using the OPE in the inverse powers of the target photon virtuality. Some model is accepted to achieve a correct analytical behaviour in the photon squared mass. This enables extrapolation to the case of a real photon.
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