Measurement of the differential cross section for top quark pair production in pp collisions at √s = 8 TeV
- CMS Collaboration
- Khachatryan, Vardan
- Bachmair, Felix
- Bäni, Lukas
- Bianchini, Lorenzo
- Buchmann, M.A.
- Casal, Bruno
- Chanon, Nicolas
- Dissertori, Günther
- Dittmar, Michael
- Donegà, Mauro
- Dünser, Marc
- Eller, Philipp
- Grab, Christoph
- Hits, Dmitry
- Hoss, Jan
- Lustermann, Werner
- Mangano, Boris
- Marini, Andrea C.
- Martinez Ruiz del Arbol, Pablo
- Masciovecchio, Mario
- Meister, Daniel
- Mohr, Niklas
- Nägeli, C.
- Nessi-Tedaldi, Francesca
- Pandolfi, Francesco
- Pauss, Felicitas
- Peruzzi, Marco
- Quittnat, Milena
- Rebane, Liis
- Rossini, Marco
- Starodumov, Andrey
- Takahashi, Maiko
- Theofilatos, Konstantinos
- Wallny, Rainer
- Weber, H.A.
- et al.
DOIAbstract
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 ...
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