PROMPT PHOTON PRODUCTION IN P-P COLLISIONS

A systematic study of the inclusive photon cross-section in p - p coll isions is presented. The dependence of the gamma rates on the renormal ization and factorization scales is discussed. A comparison is made wi th experimental data for centre-of-mass energies ranging from 23 GeV t o 1.8 TeV. Predictions of the cross-sections are given for two differe nt sets of structure functions for RHIC and LHC energies.