{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.76911.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1400803"}},{"@id":"https://doi.org/10.1103/PhysRevD.93.012002","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2017","description":"CERN-LHC. A measurement of the correlations between the polar angles of leptons from the decay of pair-produced $t$ and $\\bar{t}$ quarks in the helicity basis is reported, using proton-proton collision data collected by the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 4.6fb$^{-1}$ at a center-of-mass energy of $\\sqrt{s}=7$ TeV collected during 2011. Candidate events are selected in the dilepton topology with large missing transverse momentum and at least two jets. The angles $\\theta_1$ and $\\theta_2$ between the charged leptons and the direction of motion of the parent quarks in the $t\\bar{t}$ rest frame are sensitive to the spin information, and the distribution of $\\cos\\theta_1\\cdot\\cos\\theta_2$ is sensitive to the spin correlation between the $t$ and $\\bar{t}$ quarks. The distribution is unfolded to parton level and compared to the next-to-leading order prediction. A good agreement is observed.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.76911.v1/t1","@type":"Dataset","description":"The numerical summary of the unfolded $\\cos\\theta_1\\cdot\\cos\\theta_2$ distribution, with statistical and systematic uncertainties.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.76911.v1/t2","@type":"Dataset","description":"The correlation factors for the statistical uncertainties between any two bins of the unfolded distribution.","name":"Table 2"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1400803?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/76911"}],"inLanguage":"en","name":"Measurement of the correlations between the polar angles of leptons from top quark decays in the helicity basis at $\\sqrt{s}=7$TeV using the ATLAS detector","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1400803?version=1","version":1}