{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.96848.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/722757"}},{"@id":"https://doi.org/10.1103/PhysRevC.75.064901","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2020","description":"We present strange particle spectra and yields measured at mid-rapidity in $\\sqrt{s}$=200 GeV proton-proton (p+p) collisions at RHIC. We find that the previously observed universal transverse mass (mT\u2261$\\sqrt{pT2+m2}$) scaling of hadron production in p+p collisions seems to break down at higher \\mt and that there is a difference in the shape of the \\mt spectrum between baryons and mesons. We observe mid-rapidity anti-baryon to baryon ratios near unity for \u039b and \u039e baryons and no dependence of the ratio on transverse momentum, indicating that our data do not yet reach the quark-jet dominated region. We show the dependence of the mean transverse momentum (\\mpt) on measured charged particle multiplicity and on particle mass and infer that these trends are consistent with gluon-jet dominated particle production. The data are compared to previous measurements from CERN-SPS, ISR and FNAL experiments and to Leading Order (LO) and Next to Leading order (NLO) string fragmentation model predictions. We infer from these comparisons that the spectral shapes and particle yields from p+p collisions at RHIC energies have large contributions from gluon jets rather than quark jets.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t1","@type":"Dataset","description":"Corrected mid-rapidity (|y| < 0.5) pT spectra for $K^{+}$, $K^{\u2212}$, $K^{0}_{S}$, \u039b, \u039e, and \u03a9. \u039b spectra that have been...","name":"Figure 8 left up"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t2","@type":"Dataset","description":"Corrected mid-rapidity (|y| < 0.5) pT spectra for $K^{+}$, $K^{\u2212}$, $K^{0}_{S}$, \u039b, \u039e, and \u03a9. \u039b spectra that have been...","name":"Figure 8 left down"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t3","@type":"Dataset","description":"Corrected mid-rapidity (|y| < 0.5) pT spectra for $K^{+}$, $K^{\u2212}$, $K^{0}_{S}$, \u039b, \u039e, and \u03a9. \u039b spectra that have been...","name":"Figure 8 right up"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t4","@type":"Dataset","description":"Corrected mid-rapidity (|y| < 0.5) pT spectra for $K^{+}$, $K^{\u2212}$, $K^{0}_{S}$, \u039b, \u039e, and \u03a9. \u039b spectra that have been...","name":"Figure 8 right down"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t5","@type":"Dataset","description":"Mid-rapidity (|y| < 0.5) ratios of $\\overline{\\Lambda}$ to $\\Lambda$ and $\\overline{\\Xi}^{+}$ to $\\Xi^{-}$ vs $p_{T}$. The dashed lines in 10(b)...","name":"Figure 10 a"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t6","@type":"Dataset","description":"Mid-rapidity (|y| < 0.5) ratios of $\\overline{\\Lambda}$ to $\\Lambda$ and $\\overline{\\Xi}^{+}$ to $\\Xi^{-}$ vs $p_{T}$. The dashed lines in 10(b)...","name":"Figure 10 b"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t7","@type":"Dataset","description":"Mid-rapidity (|y| < 0.5) ratios of $\\overline{\\Lambda}$ to $\\Lambda$ and $\\overline{\\Xi}^{+}$ to $\\Xi^{-}$ vs $p_{T}$. The dashed lines in 10(b)...","name":"Figure 10 c"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t8","@type":"Dataset","description":"\u27e8$p_{T}$\u27e9 vs particle mass for different particles measured by STAR. Error bars include systematic errors. The ISR parameterization is given...","name":"Figure 11"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t9","@type":"Dataset","description":"\u27e8$p_{T}$\u27e9 vs charged multiplicity for $K^{+}$, $K^{\u2212}$, $K^{0}_{S}$, $\\Lambda+\\overline{\\Lambda}$, and $\\Xi+\\overline{\\Xi}$. The points for $\\Xi+\\overline{\\Xi}$ have been determined using only...","name":"Figure 12"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t10","@type":"Dataset","description":"Ratios of multiplicity binned spectra to minimum bias spectra ($R_{pp}$) for $K^{0}_{S}$ and \u039b and the ratio of the \u039b...","name":"Figure 13 a"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t11","@type":"Dataset","description":"Ratios of multiplicity binned spectra to minimum bias spectra ($R_{pp}$) for $K^{0}_{S}$ and \u039b and the ratio of the \u039b...","name":"Figure 13 b"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t12","@type":"Dataset","description":"Ratios of multiplicity binned spectra to minimum bias spectra ($R_{pp}$) for $K^{0}_{S}$ and \u039b and the ratio of the \u039b...","name":"Figure 13 c"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t13","@type":"Dataset","description":"Parameters of ratio data to statistical model fit using THERMUS. Filled circles are ratios from $\\sqrt{s}$=200 GeV collisions in STAR....","name":"Figure 20 up"},{"@id":"https://doi.org/10.17182/hepdata.96848.v1/t14","@type":"Dataset","description":"Parameters of ratio data to statistical model fit using THERMUS. Filled circles are ratios from $\\sqrt{s}$=200 GeV collisions in STAR....","name":"Figure 20 down"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins722757?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/96848"}],"inLanguage":"en","name":"Strange particle production in p + p collisions at s**(1/2) = 200-GeV.","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins722757?version=1","version":1}