Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV (CROSBI ID 228006)
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Podaci o odgovornosti
Khachatryan, Vardan ; ... ; Morović, Srećko ; Ferenček, Dinko ; Đurić, Senka ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Sudić, Lucija ; ... ; Woods, Nate
engleski
Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV
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.
High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model
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Podaci o izdanju
75 (11)
2015.
542-1-542-39
objavljeno
1434-6044
10.1140/epjc/s10052-015-3709-x