Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV
(2015) European Physical Journal C. Particles and Fields — Vol. C75, p. 542 (2015)
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- Abstract
- The normalized differential cross section for top quark pair (tt-bar) 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 inverse femtobarns. The measurements are performed in the lepton + jets (e/mu + jets) and in the dilepton (e+e-, mu+mu-, and e+-mu-+) decay channels. The tt-bar 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-bar system. The data are compared with several predictions from perturbative quantum chromodynamics 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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CMS, Basegmez, S., Beluffi, C., Bruno, G., Castello, R., Caudron, A., Ceard, L., Da Silveira, G. G., Delaere, C., Du Pree, T., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Jafari, A., Jez, P., Komm, M., Lemaitre, V., Nuttens, C., et al. (2015). Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV. European Physical Journal C. Particles and Fields, C75, 542. https://doi.org/10.1140/epjc/s10052-015-3709-x (Original work published 2015)