Precision measurement of the prompt photon cross section in pp-bar collisions at sqrt s =1.8 TeV.
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A prompt photon cross section measurement from the Collider Detector at Fermilab experiment is presented. Detector and trigger upgrades, as well as 6 times the integrated luminosity compared with our previous publication, have contributed to a much more precise measurement and extended PT range. As before, QCD calculations agree qualitatively with the measured cross section, but the data has a steeper slope than the calculations. 1994 The American Physical Society.