The top-antitop quark (ttÌ) production cross section is measured in proton-proton collisions at âs = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb-1. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239 ± 2 (stat.) ± 11 (syst.) ± 6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.
Titolo: | Measurement of the ttÌ production cross section in the dilepton channel in pp collisions at âs = 8 TeV |
Autori interni: | |
Data di pubblicazione: | 2014 |
Rivista: | |
Handle: | http://hdl.handle.net/20.500.11769/323798 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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