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  • Direct top-quark decay widt...
    Agatonovic-Jovin, T; Allbrooke, B M M; Anisenkov, A V; Ardell, R E; Bachacou, H; Banas, E; Bawa, H S; Beck, H P; Becker, M; Brunt, B H; Carrá, S; Cueto, A; D'amen, G; Davey, W; DeMarco, D A; Dervan, P; Doglioni, C; Etzion, E; Evans, H; Fischer, A; Franklin, M; Froidevaux, D; Galhardo, B; Giuliani, C; Goldfarb, S; Griffiths, J; Gris, Ph; Hakobyan, H; Hamnett, P G; Hance, M; Hays, J M; Hlaluku, D R; Hooberman, B H; Kajomovitz, E; Kanaya, N; Katzy, J; Khubua, J; Kowalski, T Z; Kozanecki, W; Krizka, K; Kruse, M C; Kuna, M; Lacker, H; Lacour, D; LeDortz, O; Ledroit-Guillon, F; Lee, G R; Liebig, W; Lin, T H; Liu, J K K; Merino, J Llorente; Lo, C Y; Lundberg, O; McDonald, E F; Minashvili, I A; Mondragon, M C; Monzani, S; Llácer, M Moreno; Moss, J; Neumann, M; Nikolopoulos, K; O'Shea, V; Panagiotopoulou, E St; Pantea, D; Parker, K A; Peters, K; Pettersson, N E; Pilkington, A D; Rezvani, R; Ristić, B; Robinson, D; Rzehorz, G F; Sahinsoy, M; Saimpert, M; Castillo, I Santoyo; Schachtner, B M; Schaile, D; Schmitt, C; Schmitt, S; Schott, M; Sciolla, G; Shupe, M A; Sidebo, P E; Smiesko, J; Smith, R W; Soldevila, U; Sugaya, Y; Sumida, T; Takubo, Y; Todorova-Nova, S; Truong, L; Valente, M; Viel, S; Wang, W; Werner, P; Yamamoto, A; Yamanaka, T; Zenin, O; Zhang, Z; Zoccoli, A

    The European physical journal. C, Particles and fields, 2018, Letnik: 78, Številka: 2
    Journal Article

    This paper presents a direct measurement of the decay width of the top quark using events in the lepton+jets final state. The data sample was collected by the ATLAS detector at the LHC in proton-proton collisions at a centre-of-mass energy of 8 TeV and corresponds to an integrated luminosity of 20.2 fb . The decay width of the top quark is measured using a template fit to distributions of kinematic observables associated with the hadronically and semileptonically decaying top quarks. The result, for a top-quark mass of 172.5 GeV, is consistent with the prediction of the Standard Model.