Study of Z → l lγ decays at √s = 8 TeV with the ATLAS detector

Study of Z → l lγ decays at √s = 8 TeV with the ATLAS detector

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 n...

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Hauptverfasser: Aboulhorma, A, Abramowicz, H, Abreu, H, Abulaiti, Y, Abusleme Hoffman, A. C, Acharya, B. S, Achkar, B, Adam Bourdarios, C, Adamczyk, L, Adamek, L, Addepalli, S. V, Adelman, J, Adiguzel, A, Adorni, S, Adye, T, Affolder, A. A, Afik, Y, Agaras, M. N, Agarwala, J, Aggarwal, A, Agheorghiesei, C, Aguilar-Saavedra, J. A, Ahmad, A, Ahmadov, F, Ahmed, W. S, Ahuja, S, Ai, X, Aielli, G, Aizenberg, I, Akbiyik, M, Åkesson, T. P. A, Ananiev, Viktor, Bjørke, Kristian, Buanes, Trygve, Bugge, Magnar Kopangen, Cameron, David Gordon, Catmore, James Richard, Djuvsland, Julia Isabell, Eigen, Gerald, Fomin, Nikolai, Gramstad, Eirik, Haaland, Even Simonsen, Heggelund, Andreas, Hellesund, Simen, Huiberts, Simon Kristian, Lee, Graham Richard, Lipniacka, Anna, Martin dit Latour, Bertrand Pascal Christian, Ould-Saada, Farid, Pedersen, Maiken, Read, Alexander Lincoln, Røhne, Ole Myhren, Rye, Eli Bæverfjord, Sandaker, Heidi, Shope, David Richard, Stugu, Bjarne Sandvik, Træet, Are Sivertsen, Vadla, Knut Oddvar Høie, Van Rijnbach, Milou, ATLAS, Collaboration
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Sprache:eng
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Zusammenfassung: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.