Study of Z → llγ decays at √s = 8 TeV with the ATLAS detector Aad, Georges Aguilar Saavedra, Juan Antonio Rodríguez Chala, Mikael Atlas Collaboration, / This paper presents a study of Z → llγ decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton–proton data sample corresponding to an integrated luminosity of 20.2 fb−1 collected at a centre-of mass energy √s = 8 TeV. Integrated fiducial cross-sections together with normalised differential fiducial cross-sections, sensitive to the kinematics of final-state QED radiation, are obtained. The results are found to be in agreement with state of-the-art predictions for final-state QED radiation. First measurements of Z →llγγ decays are also reported. 2024-06-11T07:07:52Z 2024-06-11T07:07:52Z 2024-02-26 journal article ATLAS Collaboration. Study of Z → llγ decays at √s = 8 TeV with the ATLAS detector. Eur. Phys. J. C 84, 195 (2024). https://doi.org/10.1140/epjc/s10052-024-12471-9 https://hdl.handle.net/10481/92476 10.1140/epjc/s10052-024-12471-9 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer Nature