{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.98971.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/810902"}},{"@id":"https://doi.org/10.1103/PhysRevLett.103.092301","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2021","description":"We report results for $K/\\pi$ fluctuations from Au+Au collisions at $\\sqrt{s_{NN}}$ = 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. Our results for $K/\\pi$ fluctuations in central collisions show little dependence on the incident energies studied and are on the same order as results observed by NA49 at the Super Proton Synchrotron in central Pb+Pb collisions at $\\sqrt{s_{NN}}$ = 12.3 and 17.3 GeV. We also report results for the collision centrality dependence of K/\u03c0 fluctuations as well as results for $K^{+}/\\pi^{+}$, $K^{-}/\\pi^{-}$, $K^{+}/\\pi^{-}$, and $K^{-}/\\pi^{+}$ fluctuations. We observe that the $K/\\pi$ fluctuations scale with the multiplicity density, $dN/d\\eta$, rather than the number of participating nucleons.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.98971.v1/t1","@type":"Dataset","description":"(Color online) The event-by-event $K/\\pi$ ratio for 200 GeV Au+Au central collisions (0-5%) compared with the same quantity calculated from...","name":"Figure 1"},{"@id":"https://doi.org/10.17182/hepdata.98971.v1/t2","@type":"Dataset","description":"(Color online) The event-by-event $K/\\pi$ ratio for 200 GeV Au+Au central collisions (0-5%) compared with the same quantity calculated from...","name":"Figure 1 inset"},{"@id":"https://doi.org/10.17182/hepdata.98971.v1/t3","@type":"Dataset","description":"(Color online) Measured dynamical $K/\\pi$ fluctuations in terms of \u03c3dyn for central collisions (0 - 5%) of 19.6, 62.4, 130,...","name":"Figure 2"},{"@id":"https://doi.org/10.17182/hepdata.98971.v1/t4","@type":"Dataset","description":"(Color online) Measured dynamical $K/\\pi$ fluctuations in terms of $\\nu_{dyn,K\\pi}$ for 62.4 and 200 GeV Au+Au compared with $\\sigma^{2}_{dyn}$ from...","name":"Figure 3"},{"@id":"https://doi.org/10.17182/hepdata.98971.v1/t5","@type":"Dataset","description":"(Color online) The dN/d\u03b7 scaled dynamical $K/\\pi$ fluctuations for summed charges (stars), same signs (circles), and opposite signs (squares) as...","name":"Figure 4"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins810902?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/98971"}],"inLanguage":"en","name":"K/pi Fluctuations at Relativistic Energies","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins810902?version=1","version":1}