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Abstract: The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)+0.15 -0.13(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.
Fuente: Physics Letters B, Vol.758, Pp. 321?346 (2016)
Editorial: Elsevier
Fecha de publicación: 01/07/2016
Nº de páginas: 26
Tipo de publicación: Artículo de Revista
DOI: 10.1016/j.physletb.2016.05.005
ISSN: 0370-2693,1873-2445
Url de la publicación: https://doi.org/10.1016/j.physletb.2016.05.005
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