Measurement of differential top-quark-pair production cross sections in pp collisions at √s = 7TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
19/03/2013
|
Resumo |
Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeVat the LHC with the CMS detector using data recorded in 2011 corresponding to an integrated luminosity of 5. 0 fb-1. The measurements are performed in the lepton+jets decay channels (e+jets and μ+jets) and the dilepton decay channels (e+}e-, μ+μ-, and μ±e∓). The tt̄ differential cross section is measured as a function of kinematic properties of the final-state charged leptons and jets associated to b quarks, as well as those of the top quarks and the tt̄ system. The data are compared with several predictions from perturbative QCD calculations up to approximate next-to-next-to-leading-order precision. No significant deviations from the standard model are observed. © 2013 CERN for the benefit of the CMS collaboration. |
Formato |
1-29 |
Identificador |
http://dx.doi.org/10.1140/epjc/s10052-013-2339-4 European Physical Journal C, v. 73, n. 3, p. 1-29, 2013. 1434-6044 1434-6052 http://hdl.handle.net/11449/74851 10.1140/epjc/s10052-013-2339-4 WOS:000318290600012 2-s2.0-84876433344 2-s2.0-84876433344.pdf |
Idioma(s) |
eng |
Relação |
European Physical Journal C |
Direitos |
openAccess |
Tipo |
info:eu-repo/semantics/article |