M. Aaboud, G. Aad, B. Abbott, J. Abdallah, K. Augsten, D. Caforio, P. Gallus, J. Guenther, Z. Hubáček, M. Myška et al.: Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data. The European Physical Journal C 76(12), 666 (2016). doi:10.1140/epjc/s10052-016-4507-9