Isolated photon cross section in p p̄ collisions at √s = 1.8 TeV (original) (raw)

This paper presents a measurement of the cross section for isolated photon production in proton-antiproton collisions at a center-of-mass energy of 1.8 TeV, based on data collected between 1992 and 1995 using the D0 detector at the Fermilab Tevatron collider. The study reports isolated photons with transverse energies above 10 GeV and explores the implications for next-to-leading order QCD calculations, addressing discrepancies observed at lower transverse energies. The findings show good agreement with theoretical predictions, contributing to the understanding of gluon distribution in protons and the direct photon production mechanism.