{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.84284.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1672806"}},{"@id":"https://doi.org/10.1103/PhysRevC.99.024905","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ALICE Collaboration"},"creator":{"@type":"Organization","name":"ALICE Collaboration"},"datePublished":"2018","description":"CERN-LHC. The production yield of the $\\Lambda$(1520) baryon resonance is measured at mid-rapidity in Pb-Pb collisions at $\\sqrt{s_{\\rm NN}}$ = 2.76 TeV with the ALICE detector at the LHC. The measurement is performed in the $\\Lambda$(1520) $\\to$ p K$^{-}$ (and charge conjugate) hadronic decay channel as a function of the transverse momentum ($p_{\\rm T}$) and collision centrality. The $p_{\\rm T}$-integrated production rate of $\\Lambda$(1520) relative to $\\Lambda$ in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at LHC and the first evidence of $\\Lambda$(1520) suppression in heavy-ion collisions. The measured $\\Lambda$(1520)/$\\Lambda$ ratio in central collisions is smaller than the value predicted by the statistical hadronisation model calculations. The shape of the measured $p_{\\rm T}$ distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.84284.v1/t1","@type":"Dataset","description":"$p_{\\rm T}$-differential yields of $\\Lambda$(1520) (sum of particle and anti-particle states) at midrapidity in the 0-20% centrality class. The uncertainty...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.84284.v1/t2","@type":"Dataset","description":"$p_{\\rm T}$-differential yields of $\\Lambda$(1520) (sum of particle and anti-particle states) at midrapidity in the 20-50% centrality class. The uncertainty...","name":"Table 2"},{"@id":"https://doi.org/10.17182/hepdata.84284.v1/t3","@type":"Dataset","description":"$p_{\\rm T}$-differential yields of $\\Lambda$(1520) (sum of particle and anti-particle states) at midrapidity in the 50-80% centrality class. The uncertainty...","name":"Table 3"},{"@id":"https://doi.org/10.17182/hepdata.84284.v1/t4","@type":"Dataset","description":"$\\langle p_{\\rm T} \\rangle$ of $\\Lambda$(1520) (sum of particle and anti-particle states) at midrapidity as a function of $\\langle {\\rm...","name":"Table 4"},{"@id":"https://doi.org/10.17182/hepdata.84284.v1/t5","@type":"Dataset","description":"$\\Lambda$(1520) (sum of particle and anti-particle states) to $\\Lambda$ (defined as 2 $\\Lambda$) $p_{\\rm T}$-integrated yield ratio at midrapidity as...","name":"Table 5"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1672806?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/84284"}],"inLanguage":"en","name":"Suppression of $\\Lambda(1520)$ resonance production in central Pb-Pb collisions at $\\sqrt{s_{\\rm NN}}$ = 2.76 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1672806?version=1","version":1}