{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.115559.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1981670"}},{"@id":"https://doi.org/10.1103/PhysRevLett.128.202303","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2022","description":"We report cumulants of the proton multiplicity distribution from dedicated fixed-target Au+Au collisions at $\\sqrt{s_{NN}}$ = 3.0 GeV, measured by the STAR experiment in the kinematic acceptance of rapidity ($y$) and transverse momentum ($p_{T}$) within $-0.5 < y<0$ and $0.4 < p_{T} <2.0 $ GeV/$c$. In the most central 0-5% collisions, a proton cumulant ratio is measured to be $C_4/C_2=-0.85 \\pm 0.09 ~(\\rm stat.) \\pm 0.82 ~(\\rm syst.)$, which is 2$\\sigma$ below the Poisson baseline with respect to both the statistical and systematic uncertainties. The hadronic transport UrQMD model reproduces our $C_4/C_2$ in the measured acceptance. Compared to higher energy results and the transport model calculations, the suppression in $C_4/C_2$ is consistent with fluctuations driven by baryon number conservation and indicates an energy regime dominated by hadronic interactions. These data imply that the QCD critical region, if created in heavy-ion collisions, could only exist at energies higher than 3 GeV.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t1","@type":"Dataset","description":"$\\sqrt{s_{NN}}$ = 3.0 GeV data (black markers), GM (red histogram), and single and pile-up contributions from unfolding. Vertical lines on...","name":"figure 1 data"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t2","@type":"Dataset","description":"$\\sqrt{s_{NN}}$ = 3.0 GeV data (black markers), GM (red histogram), and single and pile-up contributions from unfolding. Vertical lines on...","name":"figure 1 model"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t3","@type":"Dataset","description":"Centrality dependence of the proton cumulant ratios for Au+Au collisions at $\\sqrt{s_{NN}}$ = 3.0 GeV. Protons are from $-0.5 <...","name":"figure 3 Data w/o VFC"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t4","@type":"Dataset","description":"Centrality dependence of the proton cumulant ratios for Au+Au collisions at $\\sqrt{s_{NN}}$ = 3.0 GeV. Protons are from $-0.5 <...","name":"figure 3 Data w/ VFC"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t5","@type":"Dataset","description":"Centrality dependence of the proton cumulant ratios for Au+Au collisions at $\\sqrt{s_{NN}}$ = 3.0 GeV. Protons are from $-0.5 <...","name":"figure 3 UrQMD calculation"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t6","@type":"Dataset","description":"Rapidity and transverse momentum dependence of the proton cumulant ratios for 0\u20135% central collisions. Black-squares, red-dots and blue-triangles stand for...","name":"figure 4 Data w/o VFC rapidity dependence"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t7","@type":"Dataset","description":"Rapidity and transverse momentum dependence of the proton cumulant ratios for 0\u20135% central collisions. Black-squares, red-dots and blue-triangles stand for...","name":"figure 4 Data w/o VFC pT dependence"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t8","@type":"Dataset","description":"Rapidity and transverse momentum dependence of the proton cumulant ratios for 0\u20135% central collisions. Black-squares, red-dots and blue-triangles stand for...","name":"figure 4 Data w/ VFC rapidity dependence"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t9","@type":"Dataset","description":"Rapidity and transverse momentum dependence of the proton cumulant ratios for 0\u20135% central collisions. Black-squares, red-dots and blue-triangles stand for...","name":"figure 4 Data w/ VFC pT dependence"},{"@id":"https://doi.org/10.17182/hepdata.115559.v1/t10","@type":"Dataset","description":"Collision energy dependence of the ratios of cumulants, $C_4/C_2$, for proton (squares) and net-proton (red circles) from top 0-5% Au+Au...","name":"figure 5"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1981670?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/115559"}],"inLanguage":"en","name":"Measurements of Proton High Order Cumulants in 3 GeV Au+Au Collisions and Implications for the QCD Critical Point","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1981670?version=1","version":1}