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Measurement of the differential cross section for top quark pair production in pp collisions at √s=8 TeV

  • Author(s): Khachatryan, V
  • Sirunyan, AM
  • Tumasyan, A
  • Adam, W
  • Bergauer, T
  • Dragicevic, M
  • Erö, J
  • Friedl, M
  • Frühwirth, R
  • Ghete, VM
  • Hartl, C
  • Hörmann, N
  • Hrubec, J
  • Jeitler, M
  • Kiesenhofer, W
  • Knünz, V
  • Krammer, M
  • Krätschmer, I
  • Liko, D
  • Mikulec, I
  • Rabady, D
  • Rahbaran, B
  • Rohringer, H
  • Schöfbeck, R
  • Strauss, J
  • Treberer-Treberspurg, W
  • Waltenberger, W
  • Wulz, CE
  • Mossolov, V
  • Shumeiko, N
  • Suarez Gonzalez, J
  • Alderweireldt, S
  • Bansal, M
  • Bansal, S
  • Cornelis, T
  • De Wolf, EA
  • Janssen, X
  • Knutsson, A
  • Luyckx, S
  • Ochesanu, S
  • Rougny, R
  • Van De Klundert, M
  • Van Haevermaet, H
  • Van Mechelen, P
  • Van Remortel, N
  • Van Spilbeeck, A
  • Blekman, F
  • Blyweert, S
  • D’Hondt, J
  • Daci, N
  • Heracleous, N
  • Keaveney, J
  • Lowette, S
  • Maes, M
  • Olbrechts, A
  • Python, Q
  • Strom, D
  • Tavernier, S
  • Van Doninck, W
  • Van Mulders, P
  • Van Onsem, GP
  • Villella, I
  • Caillol, C
  • Clerbaux, B
  • De Lentdecker, G
  • Dobur, D
  • Favart, L
  • Gay, APR
  • Grebenyuk, A
  • Léonard, A
  • Mohammadi, A
  • Perniè, L
  • Reis, T
  • Seva, T
  • Thomas, L
  • Vander Velde, C
  • Vanlaer, P
  • Wang, J
  • Zenoni, F
  • Adler, V
  • Beernaert, K
  • Benucci, L
  • Cimmino, A
  • Costantini, S
  • Crucy, S
  • Dildick, S
  • Fagot, A
  • Garcia, G
  • Mccartin, J
  • Ocampo Rios, AA
  • Ryckbosch, D
  • Salva Diblen, S
  • Sigamani, M
  • Strobbe, N
  • Thyssen, F
  • Tytgat, M
  • Yazgan, E
  • Zaganidis, N
  • Basegmez, S
  • Beluffi, C
  • et al.
Abstract

© 2015, CERN for the benefit of the CMS collaboration. The normalized differential cross section for top quark pair (tt¯) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb-1. The measurements are performed in the lepton+jets (e/μ++jets) and in the dilepton e+e-, μ+μ-, and e±μ∓) decay channels. The tt¯ cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the tt¯ system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.

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