{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.73005.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/944730"}},{"@id":"https://doi.org/10.1103/PhysRevLett.108.082001","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2016","description":"The ALICE Collaboration has studied J/$\\psi$ production in pp collisions at $\\sqrt{s}=7$ TeV at the LHC through its muon pair decay. The polar and azimuthal angle distributions of the decay muons were measured, and results on the J/$\\psi$ polarization parameters $\\lambda_{\\theta}$ and $\\lambda_{\\phi}$  were obtained. The study was performed in the kinematic region $2.5<y<4$, $2<p_{\\rm T}<8$ GeV/$c$, in the helicity and Collins-Soper reference frames. In both frames, the polarization parameters are compatible with zero, within uncertainties.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.73005.v1/t1","@type":"Dataset","description":"$\\lambda_\\theta$ as a function of $p_{\\rm T}$ for inclusive J/$\\psi$, measured in the helicity reference frame.","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.73005.v1/t2","@type":"Dataset","description":"$\\lambda_\\phi$ as a function of $p_{\\rm T}$ for inclusive J/$\\psi$, measured in the helicity reference frame.","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.73005.v1/t3","@type":"Dataset","description":"$\\lambda_\\theta$ as a function of $p_{\\rm T}$ for inclusive J/$\\psi$, measured in the Collins-Soper reference frame.","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.73005.v1/t4","@type":"Dataset","description":"$\\lambda_\\phi$ as a function of $p_{\\rm T}$ for inclusive J/$\\psi$, measured in the Collins-Soper reference frame.","name":"Table 4"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins944730?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/73005"}],"inLanguage":"en","name":"J/psi polarization in pp collisions at sqrt(s)=7 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins944730?version=1","version":1}