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The Isolated Photon Cross Section in p pbar Collisions at sqrt(s) = 1.8 TeV

Collaboration, D; Abbott, B; (2000) The Isolated Photon Cross Section in p pbar Collisions at sqrt(s) = 1.8 TeV. Physical Review Letters , 84 (13) 2786 - 2791. 10.1103/PhysRevLett.84.2786. Green open access

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Abstract

We report a new measurement of the cross section for the production of isolated photons, with transverse energies (ET) above 10 GeV and pseudorapidities |eta| < 2.5, in p pbar collisions at sqrt{s} = 1.8 TeV. The results are based on a data sample of 107.6 pb-1 recorded during 1992--1995 with the D0 detector at the Fermilab Tevatron collider. The background, predominantly from jets which fragment to neutral mesons, was estimated using the longitudinal shower shape of photon candidates in the calorimeter. The measured cross section is in good agreement with the next-to-leading order (NLO) QCD calculation for ET > 36 GeV.

Type: Article
Title: The Isolated Photon Cross Section in p pbar Collisions at sqrt(s) = 1.8 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.84.2786
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.84.2786
Language: English
Additional information: © 2000 The American Physical Society. 12 pages, 4 figures, LaTeX. Submitted to Physical Review Letters
URI: https://discovery.ucl.ac.uk/id/eprint/1374201
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