@Article{ATLASCollaborationAaboud_etal2016, author="ATLAS Collaboration (Aaboud, M. et al and Alvarez Piqueras, D. and Barranco Navarro, L. and Cabrera Urban, S. and Castillo Gimenez, V. and Cerda Alberich, L. and Costa, M. J. and Fernandez Martinez, P. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Hernandez Jimenez, Y. and Higon-Rodriguez, E. and Jimenez Pena, J. and King, M. and Lacasta, C. and Lacuesta, V. R. and Mamuzic, J. and Marti-Garcia, S. and Melini, D. and Mitsou, V. A. and Pedraza Lopez, S. and Rodriguez Rodriguez, D. and Romero Adam, E. and Ros, E. and Salt, J. and Sanchez Martinez, V. and Soldevila, U. and Sanchez, J. and Valero, A. and Valls Ferrer, J. A. and Vos, M.", title="Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data", journal="European Physical Journal C", year="2016", publisher="Springer", volume="76", number="12", pages="666 - 42pp", abstract="The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are described. Measurements of the photon identification efficiencies are reported, using 4.9 fb(-1) of pp collision data collected at the LHC at root s = 7 TeV and 20.3 fb-1 at root s = 8 TeV. The efficiencies are measured separately for converted and unconverted photons, in four different pseudorapidity regions, for transverse momenta between 10 GeV and 1.5 TeV. The results from the combination of three data-driven techniques are compared to the predictions from a simulation of the detector response, after correcting the electromagnetic shower momenta in the simulation for the average differences observed with respect to data. Data-to-simulation efficiency ratios used as correction factors in physics measurements are determined to account for the small residual efficiency differences. These factors are measured with uncertainties between 0.5{\%} and 10{\%} in 7 TeV data and between 0.5{\%} and 5.6{\%} in 8 TeV data, depending on the photon transverse momentum and pseudorapidity.", optnote="WOS:000389890600001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2897), last updated on Thu, 12 Jan 2017 11:14:39 +0000", issn="1434-6044", doi="10.1140/epjc/s10052-016-4507-9", opturl="http://arxiv.org/abs/1606.01813", opturl="https://doi.org/10.1140/epjc/s10052-016-4507-9", archivePrefix="arXiv", eprint="1606.01813", language="English" }