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EnglishThe 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 View the MathML source0.72±0.08(stat)−0.13+0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.
| Titolo: | Measurement of spin correlations in t t-bar production using the matrix element method in the muon+jets final state in pp collisions at sqrt(s) = 8 TeV | |
| Autori: | ||
| Data di pubblicazione: | 2016 | |
| Rivista: | ||
| 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 View the MathML source0.72±0.08(stat)−0.13+0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date. | |
| Handle: | http://hdl.handle.net/11368/2876125 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.physletb.2016.05.005 | |
| URL: | http://www.sciencedirect.com/science/article/pii/S0370269316301526 | |
| Appare nelle tipologie: | 1.1 Articolo in Rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 1-s2.0-S0370269316301526-main.pdf | Documento in Versione Editoriale |  | Open Access Visualizza/Apri |
http://hdl.handle.net/11368/2876125
