{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.128775.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1891389"}},{"@id":"https://doi.org/10.1103/PhysRevLett.128.172005","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2022","description":"The polarization of the $\\Lambda$ and $\\overline\\Lambda$ hyperons along the beam ($z$) direction, $P_{\\rm z}$, has been measured in Pb--Pb collisions at $\\sqrt{s_{\\rm NN}} =$ 5.02 TeV recorded with ALICE at the Large Hadron Collider (LHC). The largest contribution to $P_{\\rm z}$ comes from elliptic flow induced vorticity and can be characterized by the second Fourier sine coefficient $P_{\\rm z,\\,{\\rm s2}} = \\langle{P_{\\rm z}\\sin(2\\varphi - 2 \\Psi_{\\rm 2})}\\rangle$, where $\\varphi$ is the hyperon azimuthal emission angle, and $\\Psi_{\\rm 2}$ is the elliptic flow plane angle. We report the measurement of $P_{\\rm z,\\,{\\rm s2}}$ for different collision centralities, and in the 30--50\\% centrality interval as a function of the hyperon transverse momentum ($p_{\\rm T}$) and rapidity ($y_{\\rm H}$).","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.128775.v1/t1","@type":"Dataset","description":"Invariant mass dependence of the $P_{z}$ for $\\overline\\Lambda$ in the 30-40% centrality class in Pb-Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02$ TeV.","name":"P_z_ANTI-LAMBDA vs. invariant mass (5.02TeV, 30-40%)"},{"@id":"https://doi.org/10.17182/hepdata.128775.v1/t2","@type":"Dataset","description":"The average $(\\Lambda + \\overline\\Lambda)$ polarization along beam direction as function of centrality in Pb-Pb collisions at $\\sqrt{s_{\\mathrm{NN}}}=5.02$ TeV.","name":"P_z vs. centrality (5.02 TeV)"},{"@id":"https://doi.org/10.17182/hepdata.128775.v1/t3","@type":"Dataset","description":"The average $(\\Lambda + \\overline\\Lambda)$ polarization along beam direction as function of hyperon transverse momentum ($p_{\\mathrm{T}}$) for 30-50% centrality in...","name":"P_z vs. pT (5.02TeV, 30-50%)"},{"@id":"https://doi.org/10.17182/hepdata.128775.v1/t4","@type":"Dataset","description":"The average $(\\Lambda + \\overline\\Lambda)$ polarization along beam direction as function of hyperon rapidity for 30-50% centrality in Pb-Pb collisions...","name":"P_z vs. rapidity (5.02TeV, 30-50%)"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1891389?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/128775"}],"inLanguage":"en","name":"Polarization of $\\Lambda$ and $\\overline{\\Lambda}$ hyperons along the beam direction in Pb-Pb collisions at $\\sqrt{s_{\\rm NN}}$ = 5.02 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1891389?version=1","version":1}