{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.100595.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/666578"}},{"@id":"https://doi.org/10.1103/PhysRevC.71.064902","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2021","description":"The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}->K\\pi$ and $K(892)^{*\\pm}->K_S^0\\pi^{\\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2<pT<=4GeV/c).","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t1","@type":"Dataset","description":"$K_S^0$ signal observed in the $\\pi^+\\pi^\u2212$ invariant mass distribution reconstructed from the decay topology method via $K_S^0->\\pi^+\\pi^\u2212$ in $p+p$ collisions....","name":"Figure 2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t2","@type":"Dataset","description":"The $K\\pi$ invariant mass distributions after event-mixing background subtraction (open star symbols) and like-sign background subtraction with different daughter momentum...","name":"Figure 5"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t3","@type":"Dataset","description":"The $K\\pi$ invariant mass distribution integrated over the $K^*$ $p_T$ for central Au+Au (upper panel) and minimum bias $p +...","name":"Figure 6"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t4","@type":"Dataset","description":"The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$...","name":"Figure 7-1-1"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t5","@type":"Dataset","description":"The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$...","name":"Figure 7-1-2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t6","@type":"Dataset","description":"The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$...","name":"Figure 7-2-1"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t7","@type":"Dataset","description":"The $K^{*0}$ mass (upper panel) and width (lower panel) as a function of $p_T$ for minimum bias $p + p$...","name":"Figure 7-2-2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t8","@type":"Dataset","description":"The $K_S^0\\pi^\\pm$ invariant mass distribution integrated over the $K^{*\\pm}$ $p_T$ for minimum bias $p + p$ collisions (upper panel) and...","name":"Figure 8"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t9","@type":"Dataset","description":"The $K^{*0}$ and $K^{*\\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p...","name":"Figure 9-1"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t10","@type":"Dataset","description":"The $K^{*0}$ and $K^{*\\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p...","name":"Figure 9-2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t11","@type":"Dataset","description":"The $K^{*0}$ and $K^{*\\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p...","name":"Figure 9-3"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t12","@type":"Dataset","description":"The $K^{*0}$ and $K^{*\\pm}$ reconstruction efficiency multiplied by the detector acceptance as a function of $p_T$ in minimum bias $p...","name":"Figure 9-4"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t13","@type":"Dataset","description":"The $(K^* + \\bar{K^*})/2$ invariant yields as a function of $m_T \u2212 m_0$ for |y| < 0.5 from minimum bias...","name":"Figure 10-1"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t14","@type":"Dataset","description":"The $(K^* + \\bar{K^*})/2$ invariant yields as a function of $m_T \u2212 m_0$ for |y| < 0.5 from minimum bias...","name":"Figure 10-2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t15","@type":"Dataset","description":"The $(K^* + \\bar{K^*})/2$ invariant yields as a function of $m_T \u2212 m_0$ for |y| < 0.5 from minimum bias...","name":"Figure 10-3"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t16","@type":"Dataset","description":"(Color online) The invariant yields for both $(K^{*0} + \\bar{K^{*0}})/2$ and $(K^{*+} + K^{*-})/2$ as a function of $p_T$ for...","name":"Figure 11-1"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t17","@type":"Dataset","description":"(Color online) The invariant yields for both $(K^{*0} + \\bar{K^{*0}})/2$ and $(K^{*+} + K^{*-})/2$ as a function of $p_T$ for...","name":"Figure 11-2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t18","@type":"Dataset","description":"(Color online) The $K^*$ $$ as a function of $dN_{ch}/d\\eta$ compared to that of $\\pi^\u2212$, $K^\u2212$, and $p$ for minimum...","name":"Figure 12"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t19","@type":"Dataset","description":"The $K^*/K$ (upper panel) and $\\phi/K^*$ (lower panel) yield ratios as a function of the c.m. system energies. The yield...","name":"Figure 13-1"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t20","@type":"Dataset","description":"The $K^*/K$ (upper panel) and $\\phi/K^*$ (lower panel) yield ratios as a function of the c.m. system energies. The yield...","name":"Figure 13-2"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t21","@type":"Dataset","description":"The $K^{*0}$ v2 (filled stars) as a function of $p_T$ for minimum bias Au+Au collisions compared to the $K^{0}_S$ (open...","name":"Figure 15"},{"@id":"https://doi.org/10.17182/hepdata.100595.v1/t22","@type":"Dataset","description":"The $K^*$ $R_{AA}$ (filled triangles) and $R_{CP}$ (filled circles) as a function of $p_T$ compared to the $K^{0}_S$ (open circles)...","name":"Figure 16"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins666578?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/100595"}],"inLanguage":"en","name":"K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR.","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins666578?version=1","version":1}