Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s = 8 TeV with the ATLAS detector Aad, G. Aguilar Saavedra, Juan Antonio Atlas Collaboration, / Hadron-Hadron scattering (experiments) Photon production Proton-proton scattering 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 < EγT < 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. 2024-10-16T09:20:24Z 2024-10-16T09:20:24Z 2016-08-01 journal article The ATLAS collaboration., Aad, G., Abbott, B. et al. Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s = 8 TeV with the ATLAS detector. J. High Energ. Phys. 2016, 5 (2016). https://doi.org/10.1007/JHEP08(2016)005 https://hdl.handle.net/10481/96005 10.1007/JHEP08(2016)005 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer Nature