Details

Autor(en) / Beteiligte

• Abbott, B.
• Adelman, J.
• Amundsen, G.
• Blair, R. E.
• Bogdanchikov, A. G.
• Bos, K.
• Brandt, A.
• Bruneliere, R.
• Bruni, G.
• Bruschi, M.
• Burmeister, I.
• Byszewski, M.
• Charlton, D. G.
• Chau, C. C.
• Chen, L.
• Cinca, D.
• Corriveau, F.
• Czodrowski, P.
• Da Via, C.
• Dawe, E.
• De Nooij, L.
• De Pedis, D.
• De Sanctis, U.
• Di Mattia, A.
• Duda, D.
• Eifert, T.
• Einsweiler, K.
• Feng, H.
• Giokaris, N.
• Giuliani, C.
• Hamilton, A.
• Hinman, R. R.
• Hodgson, P.
• Hoummada, A.
• Jaekel, M. R.
• Jarlskog, G.
• Kagan, M.
• Kawamoto, T.
• Khubua, J.
• Kirk, J.
• Kourkoumelis, C.
• Kouskoura, V.
• Kruse, A.
• Kurashige, H.
• Lacuesta, V. R.
• Laforge, B.
• Leitner, R.
• Leontsinis, S.
• Li, B.
• Lin, S. C.
• Liu, Y.
• Lokajicek, M.
• Maccarrone, G.
• Martin, B.
• Maxfield, S. J.
• Meineck, C.
• Menke, S.
• Meyer, J-P.
• Mount, R.
• Nellist, C.
• Nikolaenko, V.
• Novgorodova, O.
• Ochi, A.
• Odaka, S.
• Ospanov, R.
• Ozturk, N.
• Padilla Aranda, C.
• Pedersen, L. E.
• Pilkington, A. D.
• Pinamonti, M.
• Poveda, J.
• Protopopescu, S.
• Qureshi, A.
• Ravenscroft, T.
• Rimoldi, A.
• Royon, C. R.
• Rubinskiy, I.
• Schmieden, K.
• Schulz, H.
• Simmons, B.
• Spearman, W. R.
• Stamen, R.
• Staszewski, R.
• Straessner, A.
• Sutton, M. R.
• Tas, P.
• Vacavant, L.
• Ventura, D.
• Vickey Boeriu, O. E.
• von der Schmitt, H.
• Vranjes Milosavljevic, M.
• Wahlberg, H.
• Walkowiak, W.
• Walsh, B.
• Weng, Z.
• Wijeratne, P. A.
• Wilkens, H. G.
• Wolters, H.
• Wyatt, T. R.
• Yamauchi, K.

Titel

Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at s=7 TeV in the ATLAS detector

Ist Teil von

• The journal of high energy physics, 2015-06, Vol.2015 (6)

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2015

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• A bstract Various differential cross-sections are measured in top-quark pair t t ¯ events produced in proton-proton collisions at a centre-of-mass energy of s = 7 TeV at the LHC with the ATLAS detector. These differential cross-sections are presented in a data set corresponding to an integrated luminosity of 4 . 6 fb −1 . The differential cross-sections are presented in terms of kinematic variables, such as momentum, rapidity and invariant mass, of a top-quark proxy referred to as the pseudo-top-quark as well as the pseudo-top-quark pair system. The dependence of the measurement on theoretical models is minimal. The measurements are performed on t t ¯ events in the lepton+jets channel, requiring exactly one charged lepton and at least four jets with at least two of them tagged as originating from a b -quark. The hadronic and leptonic pseudo-top-quarks are defined via the leptonic or hadronic decay mode of the W boson produced by the top-quark decay in events with a single charged lepton. Differential cross-section measurements of the pseudo-top-quark variables are compared with several Monte Carlo models that implement next-to-leading order or leading-order multi-leg matrix-element calculations.