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

Study of Z → llγ 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-ofmass energy √s = 8 TeV. Integrated fiducial cross-sections together with no...

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Hauptverfasser: Abidi, S.H, Hoffman, A.C.A, Aguilar-Saavedra, J.A, Ahmed, W.S, Alexopoulos, T, Ames, C.G, Angerami, A, Arnaez, O, Banas, E, Baron, P, Basan, A, Bechtle, P, Beemster, L.J, Begel, M, Biondini, A, Bouhova-Thacker, E.V, Brahimi, N, Britzger, D, Campanelli, M, Cerqueira, A.S, Cheng, C.L, Cheong, S, Citterio, M, Bello, F.A.D, Doglioni, C, Donadelli, M, Donini, J, Dunne, K, Durglishvili, A, Farbin, A, Gaycken, G, Giagu, S, Gorini, B, Grandi, M, Guan, L, Hong, T.M, Huegging, F, Iodice, M, Jia, Z, Jiang, Y, Jinaru, A, Ju, X, Karyukhin, A.N, Kelsey, D, Haghighat, S.K, Khanov, A, Klimek, P, Kramberger, G, Laforge, B, Lang, V.S, Lari, T, Lawlor, S.D, Leggett, C, Liang, Z, Linck, R.A, Lloyd, S.L, Maniatis, I.M, Marantis, A, Latour, B.M.D, Mashimo, T, Maznas, I, McMahon, S.J, Mir, L.M, Mkrtchyan, T, Mönig, K, Myers, G, Naryshkin, I, Navarro, G, Neep, T.J, Oyulmaz, K.Y, Polesello, G, Proto, G, Raine, J.A, Rajagopalan, S, Schernau, M, Schmieden, K, Schmitt, C, Schmitt, S, Schwemling, P, Slawinska, M, Steentoft, J, Stockton, M.C, Sulin, V.V, Tanaka, J, Testa, M, Tian, Y, Topolnicki, K.W, Tu, Y, Ushioda, R, Vasquez, G.A, Veatch, J, Vgenopoulos, A, Vogel, F, Vranjes, N, Wang, J, Wang, Y, Wuerzinger, J, Yap, Y.C, Ye, S, Zhao, P
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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-ofmass 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 stateof-the-art predictions for final-state QED radiation. First measurements of Z → llγ γ decays are also reported.
DOI:10.1140/epjc/s10052-024-12471-9