出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：I discuss the one-gluon-exchange (aas) corrections to the four real photon structure functions Fg 2 (x;Q2), Fg L (x;Q2), gg1 (x;Q2) and Wg 3 (x;Q2) in the massive parton model. A technique based on the Cutkosky rules and the reduction of Feynman integrals to master integrals are employed. Except for Fg L , the NLO contributions are noticeable at large x and do not vanish at xmax which corresponds to the threshold of the massive quark pair production due to the Coulomb singularity. It is found that the first moment sum rule of gg1 is satisfied up to the NLO.
