Measurement of the inclusive isolated prompt photons cross section in pp collisions at √s = 7 TeV with the ATLAS detector using 4.6 fb[superscript -1]
A measurement of the cross section for the production of isolated prompt photons in pp collisions at a center-of-mass energy √s = 7 TeV is presented. The results are based on an integrated luminosity of 4.6 fb[superscript −1] collected with the ATLAS detector at the LHC. The cross section is measu...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/88796 https://orcid.org/0000-0002-7586-7253 |
| Summary: | A measurement of the cross section for the production of isolated prompt photons in pp collisions at a center-of-mass energy √s = 7 TeV is presented. The results are based on an integrated luminosity of 4.6 fb[superscript −1] collected with the ATLAS detector at the LHC. The cross section is measured as a function of photon pseudorapidity η[superscript γ] and transverse energy E[γ over T] in the kinematic range 100 ≤ E[γ over T] < 1000 GeV and in the regions |η[superscript γ]| < 1.37 and 1.52 ≤ |η[superscript γ]| < 2.37. The results are compared to leading-order parton-shower Monte Carlo models and next-to-leading-order perturbative QCD calculations. Next-to-leading-order perturbative QCD calculations agree well with the measured cross sections as a function of E[γ over T] and η[superscript γ]. |
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