{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.136028.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2605845"}},{"@id":"https://doi.org/10.1103/PhysRevLett.130.212301","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2023","description":"Wereport here the first observation of directed flow ($v_1$) of the hypernuclei $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H in mid-central Au+Au collisions at $\\sqrt{s_{NN}}$ = 3 GeV at RHIC. These data are taken as part of the beam energy scan program carried out by the STAR experiment. From 165 million events in 5-40% centrality, about 8400 $^{3}_{\\Lambda}$H and 5200 $^{4}_{\\Lambda}$H candidates are reconstructed through two- and three-body decay channels. We observe that these hypernuclei exhibit significant directed flow. Comparing to that of light nuclei, it is found that the mid-rapidity $v_1$ slopes of $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H follow baryon number scaling, implying that the coalescence is the dominant mechanism for these hypernuclei production in the 3 GeV Au+Au collisions.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t1","@type":"Dataset","description":"$\\Lambda$ hyperon and hypernuclei directed flow $v_1$, shown as a function of rapidity, from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig3 (a) $\\Lambda$"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t2","@type":"Dataset","description":"$\\Lambda$ hyperon and hypernuclei directed flow $v_1$, shown as a function of rapidity, from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig3 (b) $^{3}_{\\Lambda}$H"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t3","@type":"Dataset","description":"$\\Lambda$ hyperon and hypernuclei directed flow $v_1$, shown as a function of rapidity, from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig3 (c) $^{4}_{\\Lambda}$H"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t4","@type":"Dataset","description":"Mass dependence of the mid-rapidity $v_1$ slope, $dv_1/dy$, for $\\Lambda$, $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig4 light nuclei from data"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t5","@type":"Dataset","description":"Mass dependence of the mid-rapidity $v_1$ slope, $dv_1/dy$, for $\\Lambda$, $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig4 hypernuclei from data"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t6","@type":"Dataset","description":"Mass dependence of the mid-rapidity $v_1$ slope, $dv_1/dy$, for $\\Lambda$, $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig4 light nuclei from JAM"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t7","@type":"Dataset","description":"Mass dependence of the mid-rapidity $v_1$ slope, $dv_1/dy$, for $\\Lambda$, $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig4 hypernuclei from JAM"},{"@id":"https://doi.org/10.17182/hepdata.136028.v1/t8","@type":"Dataset","description":"Mass dependence of the mid-rapidity $v_1$ slope, $dv_1/dy$, for $\\Lambda$, $^{3}_{\\Lambda}$H and $^{4}_{\\Lambda}$H from the $\\sqrt{s_{NN}}$ = 3 GeV 5-40%...","name":"Fig4 hypernuclei from UrQMD"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2605845?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/136028"}],"inLanguage":"en","name":"First Observation of Directed Flow of Hypernuclei $^3_{\\Lambda}$H and $^4_{\\Lambda}$H in $\\sqrt{s_{\\rm NN}}$ = 3 GeV Au+Au Collisions at RHIC","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2605845?version=1","version":1}