{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.95886.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/918779"}},{"@id":"https://doi.org/10.1103/PhysRevLett.108.072301","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2020","description":"BNL-RHIC. We report new STAR measurements of mid-rapidity yields for the $\\Lambda$, $\\bar{\\Lambda}$, $K^0_S$, $\\Xi^-$, $\\bar{\\Xi}^+$, $\\Omega^-$, $\\bar{\\Omega}^+$ particles in Cu+Cu collisions at $\\sqrt{s_{NN}} = 200$ GeV, and mid-rapidity yields for the $\\Lambda$, $\\bar{\\Lambda}$, $K^0_S$ particles in Au+Au at $\\sqrt{s_{NN}} = 200$ GeV. We show that at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parameterization based on the fraction of participants that undergo multiple collisions.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t1","@type":"Dataset","description":"$K^0_S$ invariant mass spectra from Cu+Cu $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The uncertainties on the spectra...","name":"Figure 1.1: Invariant mass spectra vs $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t2","@type":"Dataset","description":"$\\Lambda$ and $\\bar{\\Lambda}$ invariant mass spectra from Cu+Cu $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The $\\Lambda$ and...","name":"Figure 1.2: Invariant mass spectra vs $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t3","@type":"Dataset","description":"$\\Xi$ and $\\bar{\\Xi}$ invariant mass spectra from Cu+Cu $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The uncertainties on...","name":"Figure 1.3: Invariant mass spectra vs $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t4","@type":"Dataset","description":"$\\Omega + \\bar{\\Omega}$ invariant mass spectra from Cu+Cu $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The uncertainties on...","name":"Figure 1.4: Invariant mass spectra vs $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t5","@type":"Dataset","description":"$K^0_S$ invariant mass spectra from Au+Au $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The uncertainties on the spectra...","name":"Figure 1.5: Invariant yield vs $p_T$ in Au+Au (0-12%) collisions"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t6","@type":"Dataset","description":"$\\Lambda$ and $\\bar{\\Lambda}$ invariant mass spectra from Au+Au $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The $\\Lambda$ and...","name":"Figure 1.6: Invariant yield vs $p_T$ in Au+Au (0-12%) collisions"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t7","@type":"Dataset","description":"$K^0_S$, $\\Lambda$, and $\\bar{\\Lambda}$, spectra divided by $\\langle N_{part} \\rangle$ for Cu+Cu $0 \u2212 10\\%$ ($\\langle N_{part} \\rangle \\sim 99$)...","name":"Figure 2.1: $d^2N/dydp_T$ mass spectra as a function of $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t8","@type":"Dataset","description":"$\\Xi + \\bar{\\Xi}$ spectra divided by $\\langle N_{part} \\rangle$ for Cu+Cu $0 \u2212 10\\%$ ($\\langle N_{part} \\rangle \\sim 99$) $\\sqrt{s_{NN}}...","name":"Figure 2.2: $d^2N/dydp_T$ mass spectra as a function of $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t9","@type":"Dataset","description":"$\\Xi + \\bar{\\Xi}$ spectra divided by $\\langle N_{part} \\rangle$ for Au+Au $20 \u2212 40\\%$ ($\\langle N_{part} \\rangle \\sim 141$) $\\sqrt{s_{NN}}...","name":"Figure 2.3: $d^2N/dydp_T$ mass spectra as a function of $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t10","@type":"Dataset","description":"$\\Omega + \\bar{\\Omega}$ spectra divided by $\\langle N_{part} \\rangle$ for Cu+Cu $0 \u2212 10\\%$ ($\\langle N_{part} \\rangle \\sim 99$) $\\sqrt{s_{NN}}...","name":"Figure 2.4: $d^2N/dydp_T$ mass spectra as a function of $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t11","@type":"Dataset","description":"$\\Omega + \\bar{\\Omega}$ spectra divided by $\\langle N_{part} \\rangle$ for Au+Au $20 \u2212 40\\%$ ($\\langle N_{part} \\rangle \\sim 141$) $\\sqrt{s_{NN}}...","name":"Figure 2.5: $d^2N/dydp_T$ mass spectra as a function of $p_T$"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t12","@type":"Dataset","description":"The enhancement factor for (multi-) strange particles in Cu+Cu $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The $\\Lambda$,...","name":"Figure3.1: Strangeness Enhancement as a function of Npart"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t13","@type":"Dataset","description":"The enhancement factor for (multi-) strange particles in Au+Au $\\sqrt{s_{NN}} = 200$ GeV collisions, where $|y| < 0.5$. The $\\Lambda$,...","name":"Figure3.2: Strangeness Enhancement as a function of Npart"},{"@id":"https://doi.org/10.17182/hepdata.95886.v1/t14","@type":"Dataset","description":"Ratio of particle yields in central Cu+Cu and midcentral Au+Au collisions when $\\langle N_{part} \\rangle = 99$ in each case...","name":"Figure4: Ratio of particle yields"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins918779?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/95886"}],"inLanguage":"en","name":"Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \\sqrt{s_{NN}} = 200 GeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins918779?version=1","version":1}