DOIAbstract
In a previous paper, the parton distributions at small x were obtained by using the hadronic input with a Pomeron cut exchange for the gluon and the sea quark and by intro-ducing an O(αS(Q 2)) term for the point-like parts. Here we extend this approach to the region of large x. We show that the predictions of the gluon distribution, Gγ(x,Q2), and the structure function, F γ2 (x,Q 2), are in good agreement with the OPAL experimental data at large x. The structure function of photons has been investigated with deep inelastic electron-photon (e − γ) scattering. Experimentally, information regarding this func-tion is extracted from the process (e+e − → e+e − + hadrons). The structure function F γ2 (x,
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