Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102781
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Type: Journal article
Title: Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s = 8 TeV with the ATLAS detector
Other Titles: Measurement of the inclusive isolated prompt photon cross section in pp collisions at root s = 8 TeV with the ATLAS detector
Author: Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Abeloos, B.
Aben, R.
Abolins, M.
AbouZeid, O.
Abraham, N.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.
Adamczyk, L.
Adams, D.
Adelman, J.
Adomeit, S.
Adye, T.
Affolder, A.
et al.
Citation: Journal of High Energy Physics, 2016; 2016(8):005-0-005-41
Publisher: Springer
Issue Date: 2016
ISSN: 1126-6708
1029-8479
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... M.J. White ... et al. (ATLAS Collaboration)
Abstract: A measurement of the cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a centre-of-mass energy of √s = 8 TeV is presented. The measurement covers the pseudorapidity ranges |ηγ | < 1.37 and 1.56 ≤ |ηγ | < 2.37 in the transverse energy range 25 < ETγ < 1500 GeV. The results are based on an integrated luminosity of 20.2 fb⁻¹, recorded by the ATLAS detector at the LHC. Photon candidates are identified by combining information from the calorimeters and the inner tracker. The background is subtracted using a data-driven technique, based on the observed calorimeter shower-shape variables and the deposition of hadronic energy in a narrow cone around the photon candidate. The measured cross sections are compared with leading-order and next-to-leading order perturbative QCD calculations and are found to be in a good agreement over ten orders of magnitude.
Keywords: Hadron-Hadron scattering (experiments); Photon production; proton-proton scattering
Rights: © The Author(s) 2016. Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
RMID: 0030053749
DOI: 10.1007/JHEP08(2016)005
Appears in Collections:Physics publications

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