{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.98927.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/696676"}},{"@id":"https://doi.org/10.1103/PhysRevC.74.064906","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2021","description":"We report on $p-\\Lambda$, $p-\\bar{\\Lambda}$, $\\bar{p}-\\Lambda$, and $\\bar{p}-\\bar{\\Lambda}$ correlation functions constructed in central $Au-Au$ collisions at $\\sqrt{s_{NN}}=200$ GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the $p-\\Lambda$ and $\\bar{p}-\\bar{\\Lambda}$ correlation functions. It is found to be smaller than the pion source size also measured by the STAR experiment at smaller transverse masses, in agreement with a scenario of a strong universal collective flow. The $p-\\bar{\\Lambda}$ and $\\bar{p}-\\Lambda$ correlation functions, which are measured for the first time, exhibit a large anticorrelation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t1","@type":"Dataset","description":"Invariant mass of the selected $\\Lambda$ background not substracted with $0.3 < p_t < 2.0$ GeV/c. The y axis represents...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t2","@type":"Dataset","description":"Invariant mass of the selected $\\bar{\\Lambda}$ background not substracted with $0.3 < p_t < 2.0$ GeV/c. The y axis represents...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t3","@type":"Dataset","description":"The purity and momentum-resolution corrected correlation functions $C_{true}(k^{*})$ for $p-\\Lambda$, $\\bar{p}-\\bar{\\Lambda}$ (a), $\\bar{p}-\\Lambda$, $p-\\bar{\\Lambda}$ (b). Curves correspond to fits done...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t4","@type":"Dataset","description":"The purity and momentum-resolution corrected correlation functions $C_{true}(k^{*})$ for $p-\\Lambda$, $\\bar{p}-\\bar{\\Lambda}$ (a), $\\bar{p}-\\Lambda$, $p-\\bar{\\Lambda}$ (b). Curves correspond to fits done...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t5","@type":"Dataset","description":"$(p-\\Lambda) \\oplus (\\bar{p}-\\bar{\\Lambda})$ and $(\\bar{p}-\\Lambda) \\oplus (p-\\bar{\\Lambda})$ combined correlation functions. Correlation functions are corrected for purity and momentum resolution. Curves...","name":"Table 5"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t6","@type":"Dataset","description":"The combined $(\\bar{p}-\\Lambda) \\oplus (p-\\bar{\\Lambda})$ spin-averaged $s$-wave scattering length compared with the previous measurements for the $p-\\bar{p}$ system [24-27]. The...","name":"Table 6a"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t7","@type":"Dataset","description":"The combined $(\\bar{p}-\\Lambda) \\oplus (p-\\bar{\\Lambda})$ spin-averaged $s$-wave scattering length compared with the previous measurements for the $p-\\bar{p}$ system [24-27]. The...","name":"Table 6b"},{"@id":"https://doi.org/10.17182/hepdata.98927.v1/t8","@type":"Dataset","description":"Pion source size [5] compared with proton and lambda source sizes as a function of the mean transverse mass $(\\langle...","name":"Table 7"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins696676?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/98927"}],"inLanguage":"en","name":"Proton Lambda correlations in central Au + Au collisions at s(NN)**(1/2) = 200-GeV.","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins696676?version=1","version":1}