{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.66567.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1320561"}},{"@id":"https://doi.org/10.1007/JHEP01(2015)053","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2015","description":"CERN-LHC.  A measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in the final state, requires exactly one isolated lepton (muon or electron) and exactly two jets, one of which is likely to originate from the hadronization of a bottom quark. The analysis is performed using data recorded at a center-of-mass energy of 8 TeV with the CMS detector at the CERN LHC in 2012. The data sample corresponds to an integrated luminosity of 19.7 inverse femtobarn. The measured helicity fractions are FL=0.298 +/- 0.028(stat) +/- 0.032(syst), F0=0.720 +/- 0.039(stat) +/- 0.037(syst), and FR=-0.018 +/- 0.019(stat) +/- 0.011(syst). These results are used to set limits on the real part of the tWb anomalous couplings, gL and gR.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.66567.v1/t1","@type":"Dataset","description":"Measurement of the W helicity fractions using the cos(theta*l) distribution in the muon channel. The helicity fractions corresponding to the...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.66567.v1/t2","@type":"Dataset","description":"Measurement of the W helicity fractions using the cos(theta*l) distribution in the electron channel. The helicity fractions corresponding to the...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.66567.v1/t3","@type":"Dataset","description":"Measurement of the W helicity fractions using the cos(theta*l) distribution in both electron and muon channels. The helicity fractions corresponding...","name":"Table 3"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1320561?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/66567"}],"inLanguage":"en","name":"Measurement of the W boson helicity in events with a single reconstructed top quark in pp collisions at sqrt(s)=8 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1320561?version=1","version":1}