Inclusive Prompt Photon Production in Polarized pp Collisions at HERA-N

摘要

The authors present a NLO study of inclusive polarized prompt photon productionin a conceivable fixed target pp mode of HERA with longitudinally polarized protons at square root s = 39 GeV. The authors analyze the sensitivity of the corresponding double spin asymmetry to the proton's polarized gluon distribution delta(g) and estimate the expected statistical precision in its determination. The main theoretical uncertainties in the predictions are examined.