Abstract
The normalized differential cross section for top quark pair (tt‾) production is measured in pp collisions at a centre-of-mass energy of 8 TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7 fb−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.
Original language | English |
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Article number | 452 |
Number of pages | 39 |
Journal | European Physical Journal C |
Volume | 75 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2015 |
Externally published | Yes |
Keywords
- Collisions
- Bosons
- Jets