{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.38092.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1403169"}},{"@id":"https://doi.org/10.1007/JHEP04(2016)073","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2016","description":"A first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 inverse-femtobarns. A high-purity sample of t-channel single top quark events with an isolated muon is selected. Signal and background components are estimated using a fit to data. A differential cross section measurement, corrected for detector effects, of an angular observable sensitive to the top quark polarisation is performed. The differential distribution is used to extract a top quark spin asymmetry of 0.26 +/- 0.03 (stat) +/- 0.10 (syst), which is compatible with a p-value of 4.6% with the standard model prediction of 0.44.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.38092.v1/t1","@type":"Dataset","description":"The normalized differential cross section as a function of unfolded $\\cos\\theta_{\\mu}^{*}$ for top quark.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.38092.v1/t2","@type":"Dataset","description":"The normalized differential cross section as a function of unfolded $\\cos\\theta_{\\mu}^{*}$ for top antiquark.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.38092.v1/t3","@type":"Dataset","description":"The normalized differential cross section as a function of unfolded $\\cos\\theta_{\\mu}^{*}$ for top quark and antiquark.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.38092.v1/t4","@type":"Dataset","description":"The asymmetry $A_{\\mu}$ extracted from the differential cross sections.","name":"Table 4"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1403169?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/38092"}],"inLanguage":"en","name":"Measurement of Top Quark Polarisation in T-Channel Single Top Quark Production","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1403169?version=1","version":1}