The Isolated Photon Cross Section in the Central and Forward Rapidity Regions in p-pbar Collisions at sqrt(s) = 1.8 TeV

TL;DR

This paper reports a measurement of the isolated photon production cross section in proton-antiproton collisions at 1.8 TeV, covering different rapidity regions and photon energies, using data from the D0 detector at Fermilab.

Contribution

First measurement of isolated photon cross sections in both central and forward rapidity regions at Tevatron energies.

Findings

Photon cross section measured across 10-125 GeV energies.

Data consistent with quantum chromodynamics predictions.

Provides insights into parton distribution functions.

Abstract

A measurement of the cross section for production of single, isolated photons is reported for transverse energies in the range of 10-125 GeV, for two regions of pseudorapidity, |\eta|<0.9 and 1.6<|\eta|<2.5. The data represent 12.9 pb-1 of integrated luminosity accumulated in p-pbar collisions at sqrt{s} = 1.8 TeV and recorded with the D0 detector at the Fermilab Tevatron Collider.