ISOLATED PHOTONS AT HADRON COLLIDERS AT O(ALPHA-ALPHA(S)(2)) .2. SPIN-DEPENDENT CASE

The cross section for inclusive prompt photon production with polarize d hadron beams is calculated at order alpha alpha(s)(2) using the phas e-space slicing or analytic/Monte Carlo method. Isolation cuts are pla ced on the photon and the results are compared to a previous fully ana lytic calculation. Numerical results for the isolated cross section ar e presented for (p) over right arrow (p) over right arrow --> gamma X at RHIC centre-of-mass energies with plausible isolation parameters using the most modem polarized parton densities evolved in next-to-lea ding order QCD. The perturbative stability of the asymmetries and scal e dependence of the results are briefly discussed. (C) 1997 Elsevier S cience B.V.