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Measurements of spin correlation in top-antitop quark events from proton-proton collisions at $\sqrt{s}=7$ TeV using the ATLAS detector
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dc.type
JournalArticle
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dc.abstract.en
Measurements of spin correlation in top quark pair production are presented using data collected with the ATLAS detector at the LHC with proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 4.6 fb$^{-1}$. Events are selected in final states with two charged leptons and at least two jets and in final states with one charged lepton and at least four jets. Four different observables sensitive to different properties of the top quark pair production mechanism are used to extract the correlation between the top and antitop quark spins. Some of these observables are measured for the first time. The measurements are in good agreement with the Standard Model prediction at next-to-leading-order accuracy.
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dc.description.volume
90
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dc.description.number
11
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dc.description.publication
2
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dc.identifier.doi
10.1103/PhysRevD.90.112016
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dc.identifier.eissn
1550-2368
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dc.title.journal
Physical Review. D, Particles, Fields, Gravitation, and Cosmology
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dc.contributor.institution
ATLAS Collaboration
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dc.language.container
eng
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dc.affiliation
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
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dc.subtype
Article
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dc.identifier.articleid
112016
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dc.rights.original
CC-BY; inne; ostateczna wersja wydawcy; w momencie opublikowania; 0