Measurement of the inclusive isolated prompt photon cross section in pp collisions at [sqrt]s=7 TeV with the ATLAS detector
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Aad-2011-Measurement of the i.pdf
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Author(s)
Taylor, Frank E.
Alternative Title
Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s=7 TeV with the ATLAS detector
Date Issued
March 2011
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aad, G. et al. "Measurement of the inclusive isolated prompt photon cross section in pp collisions at [sqrt]s=7 TeV with the ATLAS detector." (ATLAS Collaboration) Phys. Rev. D 83, 052005 (2011) [31 pages].
Version
Final published version
Abstract
A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy [sqrt]s=7 TeV is presented. The measurement covers the pseudorapidity ranges |etaγ|<1.37 and 1.52≤|etaγ|<1.81 in the transverse energy range 15≤ETγ<100 GeV. The results are based on an integrated luminosity of 880 nb-1, collected with the ATLAS detector at the Large Hadron Collider. Photon candidates are identified by combining information from the calorimeters and from the inner tracker. Residual background in the selected sample is estimated from data based on the observed distribution of the transverse isolation energy in a narrow cone around the photon candidate. The results are compared to predictions from next-to-leading-order perturbative QCD calculations.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.83.052005
