Polarized Photoproduction Of Large-P(T) Hadron Pairs As A Probe Of The Polarized Gluon Distribution

Production of large-p(T) hadron pairs by a polarized photon on a longitudinally polarized proton towards probing the polarized gluon distribution is studied. Resolved photon contributions and the effect of changing the scales are taken into account, and predictions are presented. A very recent experimental result at c.m. energy 7.18 GeV is compared to our predictions extended down to this energy. A proper combination of cross sections is also considered.