{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.99154.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/651461"}},{"@id":"https://doi.org/10.1016/j.physletb.2004.12.082","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2020","description":"We report the STAR measurement of $\\phi$ meson production in Au+Au and p+p collisions at $\\sqrt{s_{NN}}$ = 200 GeV. Using the event mixing technique, the $\\phi$ spectra and yields are obtained at mid-rapidity for five centrality bins in Au+Au collisions and for non-singly-diffractive p+p collisions. It is found that the $\\phi$ transverse momentum distributions from Au+Au collisions are better fitted with a single-exponential while the p+p spectrum is better described by a double-exponential distribution. The measured nuclear modification factors indicate that $\\phi$ production in central Au+Au collisions is suppressed relative to peripheral collisions when scaled by the number of binary collisions ($<N_{bin}>)$. The systematics of $<p_T>$ versus centrality and the constant $\\phi/K^-$ ratio versus beam species, centrality, and collision energy rule out kaon coalescence as the dominant mechanism for $\\phi$ production.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.99154.v1/t1","@type":"Dataset","description":"Transverse mass distributions for $\\phi$ meson from Au+Au (circles) and p+p (squares) collisions at 200 GeV. For clarity, some Au+Au...","name":"Figure 1"},{"@id":"https://doi.org/10.17182/hepdata.99154.v1/t2","@type":"Dataset","description":"Results of $\\phi$ meson inverse slope parameter, $$, and dN/dy from NSD p+p and Au+Au collisions at RHIC. All values...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.99154.v1/t3","@type":"Dataset","description":"$R_{CP}$ (a): The ratio of central (top 5%) over peripheral (60-80%) ($R_{CP}$) normalized by $$. The ratios for the $\\Lambda$...","name":"Figure 3"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins651461?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/99154"}],"inLanguage":"en","name":"Phi meson production in Au + Au and 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/ins651461?version=1","version":1}