{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.96906.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/777954"}},{"@id":"https://doi.org/10.1103/PhysRevC.77.054901","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2020","description":"We present STAR results on the elliptic flow $v_2$ of charged hadrons, strange and multi-strange particles from $\\sqrt{s_{NN}} = 200$ GeV $Au+Au$ collisions at RHIC. The detailed study of the centrality dependence of $v_{2}$ over a broad transverse momentum range is presented. Comparison of different analysis methods are made in order to estimate systematic uncertainties. In order to discuss the non-flow effect, we have performed the first analysis of $v_{2}$ with the Lee-Yang Zero method for $K_{S}^{0}$ and $\\Lambda$. In the relatively low $p_{T}$ region, $p_{T} \\le 2$ GeV/c, a scaling with $m_{T}\u2212m$ is observed for identified hadrons in each centrality bin studied. However, we do not observe  $v_{2}(p_{T})$ scaled by the participant eccentricity to be independent of centrality. At higher $p_{T}$ , $2 \\le p_{T} \\le 6$ GeV/c,  $v_{2}$ scales 3 with quark number for all hadrons studied. For the multi-strange hadron $\\Omega$, which does not suffer appreciable hadronic interactions, the values of $v_{2}$ are consistent with both $m_{T}\u2212m$ scaling at low $p_{T}$ and number-of-quark scaling at intermediate $p_{T}$. As a function of collision centrality, an increase of $p_{T}$-integrated $v_{2}$ scaled by the participant eccentricity has been observed, indicating a stronger collective flow in more central $Au+Au$ collisions.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t1","@type":"Dataset","description":"$v_{2}(\\eta)$ for charged hadrons, $0.15 < p_{T} < 2.0$ GeV/c, centrality $10-40\\%$, from $Au+Au$ collisions at $\\sqrt{s_{NN}} = 200$ GeV.","name":"Figure 3"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t2","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for charged hadrons with $|\\eta| < 1.0$ in 10\u201340$%$ $Au+Au$ collisions, at $\\sqrt{s_{NN}} =...","name":"Figure 4a (Event Plane)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t3","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for charged hadrons with $|\\eta| < 1.0$ in 10\u201340$%$ $Au+Au$ collisions, at $\\sqrt{s_{NN}} =...","name":"Figure 4a (4-particle cumulant)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t4","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for charged hadrons with $|\\eta| < 1.0$ in 10\u201340$%$ $Au+Au$ collisions, at $\\sqrt{s_{NN}} =...","name":"Figure 4a (Lee-Yang Zero)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t5","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for charged hadrons with $|\\eta| < 1.0$ in 0\u201380$%$ $Au+Au$ collisions, at $\\sqrt{s_{NN}} =...","name":"Figure 4 (Event Plane $0-80\\%$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t6","@type":"Dataset","description":"$p_{T}$ integrated charged hadron $v_{2}$ in the TPC as a function of geometrical cross section. Shown are the Event Plane...","name":"Figure 5a (Event Plane)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t7","@type":"Dataset","description":"$p_{T}$ integrated charged hadron $v_{2}$ in the TPC as a function of geometrical cross section. Shown are the 4 Cumulant...","name":"Figure 5a (4 Cumulant)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t8","@type":"Dataset","description":"$p_{T}$ integrated charged hadron $v_{2}$ in the TPC as a function of geometrical cross section. Shown are the Lee-Yang Zero...","name":"Figure 5a (LYZ_Sum)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t9","@type":"Dataset","description":"$p_{T}$ integrated charged hadron $v_{2}$ in the TPC as a function of geometrical cross section. Shown are the Lee-Yang Zero...","name":"Figure 5a (LYZ_Prod)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t10","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for $10\u201340\\%$ centrality using $\\eta$-subevent method (open crosses), are shown in (a) for $\\Lambda$....","name":"Figure 6a Lambda($\\eta$-sub)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t11","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for $10\u201340\\%$ centrality using Event Plane method (open circles), are shown in (a) for...","name":"Figure 6a Lambda(Event Plane)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t12","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for $10\u201340\\%$ centrality using $\\eta$-subevent method (open crosses), are shown in (b) for $K_{S}^{0}$....","name":"Figure 6b $K_{S}^{0}$($\\eta$-sub)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t13","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for $10\u201340\\%$ centrality using Event Plane method (open circles), are shown in (b) for...","name":"Figure 6b $K_{S}^{0}$(Event Plane)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t14","@type":"Dataset","description":"$v_{2}$ as a function of $p_{T}$ for $10\u201340\\%$ centrality using Lee-Yang Zero method with Sum Generating Function (solid circles), are...","name":"Figure 6a and 6b (LYZ)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t15","@type":"Dataset","description":"$v_{2}$ of $K_{S}^{0}$ (open circles) as a function of $p_{T}$ for (a) $0\u201380\\%$, (b) $40\u201380\\%$, (c) $10\u201340\\%$ and (d) $0\u201310\\%$...","name":"Figure 7 ($K_{S}^{0}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t16","@type":"Dataset","description":"$v_{2}$ of $\\Lambda+\\bar{\\Lambda}$ (open squares) as a function of $p_{T}$ for (a) $0\u201380\\%$, (b) $40\u201380\\%$, (c) $10\u201340\\%$ and (d) $0\u201310\\%$...","name":"Figure 7 ($\\Lambda+\\bar{\\Lambda}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t17","@type":"Dataset","description":"$v_{2}$ of $\\Xi^{-}+\\bar{\\Xi}^{+}$ (filled triangles) as a function of $p_{T}$ for (a) $0\u201380\\%$ centrality in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 7a ($\\Xi^{-}+\\bar{\\Xi}^{+}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t18","@type":"Dataset","description":"$v_{2}$ of $\\Xi^{-}+\\bar{\\Xi}^{+}$ (filled triangles) as a function of $p_{T}$ for (b) $40\u201380\\%$ centrality in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 7b ($\\Xi^{-}+\\bar{\\Xi}^{+}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t19","@type":"Dataset","description":"$v_{2}$ of $\\Xi^{-}+\\bar{\\Xi}^{+}$ (filled triangles) as a function of $p_{T}$ for (c) $10\u201340\\%$ centrality in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 7c ($\\Xi^{-}+\\bar{\\Xi}^{+}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t20","@type":"Dataset","description":"$v_{2}$ of $\\Xi^{-}+\\bar{\\Xi}^{+}$ (filled triangles) as a function of $p_{T}$ for (d) $0\u201310\\%$ centrality in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 7d ($\\Xi^{-}+\\bar{\\Xi}^{+}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t21","@type":"Dataset","description":"$v_{2}$ of $\\Omega^{-}+\\bar{\\Omega}^{+}$ (filled circles) as a function of $p_{T}$ for (a) $0\u201380\\%$ centrality in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 7a ($\\Omega^{-}+\\bar{\\Omega}^{+}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t22","@type":"Dataset","description":"$v_{2}$ of $\\Omega^{-}+\\bar{\\Omega}^{+}$ (filled circles) as a function of $p_{T}$ for (d) $0\u201310\\%$ centrality in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 7d ($\\Omega^{-}+\\bar{\\Omega}^{+}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t23","@type":"Dataset","description":"$v_{2}$ of $p+\\bar{p}$ (filled squares) and $\\pi^{+}+\\pi^{-}$ (filled stars) as a function of $p_{T}$ for (a) $0\u201380\\%$ centrality in $Au+Au$...","name":"Figure 7a ($p+\\bar{p}$ and $\\pi^{+}+\\pi^{-}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t24","@type":"Dataset","description":"Fig12d inset $\\Lambda$ (open squares) expansion at low $p_{T}$","name":"Figure 12d inset ($\\Lambda$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t25","@type":"Dataset","description":"Fig12d inset for $K_{S}^{0}$ (filled circles) expansion at low $p_{T}$","name":"Figure 12d inset ($K_{S}^{0}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t26","@type":"Dataset","description":"Fig13 Centrality dependence of $v_{2}$ versus number of participants $N_{part}$ for charged hadrons (crosses) in $Au+Au$ collisions at $\\sqrt{s_{NN}} =...","name":"Figure 13 (charged hadrons)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t27","@type":"Dataset","description":"Fig14 $p_{T}$ dependence of $v_{2}$ of $K_{S}^{0}$ at 200 GeV.","name":"Figure 14 ($K_{S}^{0}$)"},{"@id":"https://doi.org/10.17182/hepdata.96906.v1/t28","@type":"Dataset","description":"Fig14 $p_{T}$ dependence of $v_{2}$ of $\\Lambda$ at 200 GeV.","name":"Figure 14 ($\\Lambda$)"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins777954?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/96906"}],"inLanguage":"en","name":"Centrality dependence of charged hadron and strange hadron elliptic flow from sqrt(s_NN) = 200 GeV Au+Au collisions","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins777954?version=1","version":1}