Radiatively Generated Parton Distributions of Polarized Hadrons and Photons*
نویسنده
چکیده
A next-to-leading order QCD analysis of spin asymmetries and structure functions in polarized deep inelastic lepton nucleon scattering is presented within the framework of the radiative parton model. The Q-dependence of the spin asymmetry Ap1(x,Q ) is shown to be nonnegligible for x-values relevant for the analysis of the present data. In the second part of the paper we present LO results for radiatively generated spin-dependent parton distributions of the photon and for its structure function g 1 . * Invited talk presented at the ”Workshop on the Prospects of Spin Physics at HERA”, DESY-Zeuthen, Germany, August 28-31, 1995.
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تاریخ انتشار 1995