Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102686
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dc.contributor.authorAad, G.en
dc.contributor.authorAbbott, B.en
dc.contributor.authorAbdallah, J.en
dc.contributor.authorAbdel Khalek, S.en
dc.contributor.authorAbdinov, O.en
dc.contributor.authorAben, R.en
dc.contributor.authorAbi, B.en
dc.contributor.authorAbolins, M.en
dc.contributor.authorAbouzeid, O.en
dc.contributor.authorAbramowicz, H.en
dc.contributor.authorAbreu, H.en
dc.contributor.authorAbreu, R.en
dc.contributor.authorAbulaiti, Y.en
dc.contributor.authorAcharya, B.en
dc.contributor.authorAdamczyk, L.en
dc.contributor.authorAdams, D.en
dc.contributor.authorAdelman, J.en
dc.contributor.authorAdomeit, S.en
dc.contributor.authorAdye, T.en
dc.contributor.authorAgatonovic-Jovin, T.en
dc.contributor.authoret al.en
dc.date.issued2015en
dc.identifier.citationPhysical Review Letters, 2015; 114(14):142001-1-142001-19en
dc.identifier.issn0031-9007en
dc.identifier.issn1079-7114en
dc.identifier.urihttp://hdl.handle.net/2440/102686-
dc.description.abstractA measurement of spin correlation in tt[over ¯] production is presented using data collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 20.3  fb^{-1}. The correlation between the top and antitop quark spins is extracted from dilepton tt[over ¯] events by using the difference in the azimuthal angle between the two charged leptons in the laboratory frame. In the helicity basis the measured degree of correlation corresponds to A_{helicity}=0.38±0.04, in agreement with the standard model prediction. A search is performed for pair production of top squarks with masses close to the top quark mass decaying to predominantly right-handed top quarks and a light neutralino, the lightest supersymmetric particle. Top squarks with masses between the top quark mass and 191 GeV are excluded at the 95% confidence level.en
dc.description.statementofresponsibilityG. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni ... M. White ... et al. (The ATLAS Collaboration)en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rights© 2015 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.en
dc.subject(ATLAS Collaboration)en
dc.titleMeasurement of spin correlation in top-antitop quark events and search for top squark pair production in pp collisions at √s =8 TeV using the ATLAS detectoren
dc.title.alternativeMeasurement of spin correlation in top-antitop quark events and search for top squark pair production in pp collisions at root s = 8 TeV using the ATLAS detectoren
dc.typeJournal articleen
dc.identifier.rmid0030027566en
dc.identifier.doi10.1103/PhysRevLett.114.142001en
dc.identifier.pubid169900-
pubs.library.collectionPhysics publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Physics publications

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