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EnglishThe normalized differential cross section for top quark pair (t¯t) 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 t¯t 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 t¯t 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.
| Titolo: | Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV |
| Autori: | |
| Data di pubblicazione: | 2015 |
| Rivista: | |
| Abstract: | The normalized differential cross section for top quark pair (t¯t) 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 t¯t 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 t¯t 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. |
| Handle: | http://hdl.handle.net/11368/2854737 |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1140/epjc/s10052-015-3709-x |
| Appare nelle tipologie: | 1.1 Articolo in Rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV.pdf | pdf versione editoriale | Publisher-Version | Digital Rights Management non definito | Open Access Visualizza/Apri |
| Supplementary material.pdf | pdf materiale supplementare | Publisher-Version | Digital Rights Management non definito | Open Access Visualizza/Apri |
http://hdl.handle.net/11368/2854737
