{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.100592.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/747299"}},{"@id":"https://doi.org/10.1016/j.physletb.2007.06.035","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"STAR Collaboration"},"creator":{"@type":"Organization","name":"STAR Collaboration"},"datePublished":"2021","description":"We study the energy dependence of the transverse momentum (pT) spectra for charged pions, protons and anti-protons for Au+Au collisions at \\sqrt{s_NN} = 62.4 and 200 GeV. Data are presented at mid-rapidity (|y| < 0.5) for 0.2 < pT < 12 GeV/c. In the intermediate pT region (2 < pT < 6 GeV/c), the nuclear modification factor is higher at 62.4 GeV than at 200 GeV, while at higher pT (pT >7 GeV/c) the modification is similar for both energies. The p/pi+ and pbar/pi- ratios for central collisions at \\sqrt{s_NN} = 62.4 GeV peak at pT ~ 2 GeV/c. In the pT range where recombination is expected to dominate, the p/pi+ ratios at 62.4 GeV are larger than at 200 GeV, while the pbar/pi- ratios are smaller. For pT > 2 GeV/c, the pbar/pi- ratios at the two beam energies are independent of pT and centrality indicating that the dependence of the pbar/pi- ratio on pT does not change between 62.4 and 200 GeV. These findings challenge various models incorporating jet quenching and/or constituent quark coalescence.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.100592.v1/t1","@type":"Dataset","description":"Midrapidity (|y| < 0.5) transverse momentum spectra for pions, protons, anti-protons for various event centrality classes for Au+Au at sqrt(sNN)...","name":"Figure 1"},{"@id":"https://doi.org/10.17182/hepdata.100592.v1/t2","@type":"Dataset","description":"The insets show pi\u2212/pi+ ratios at sqrt(sNN) = 62.4 GeV and anti-proton/proton ratios at sqrt(sNN) = 62.4 (0-10%) and 200...","name":"Figure 1 inset"},{"@id":"https://doi.org/10.17182/hepdata.100592.v1/t3","@type":"Dataset","description":"The minimum bias data shown here were extracted from the figures by xyscan. Hence, the dataset is not full (especially...","name":"Figure 1 minimum bias"},{"@id":"https://doi.org/10.17182/hepdata.100592.v1/t4","@type":"Dataset","description":"Centrality and pT dependence of RCP for pions and protons for Au+Au at sqrt(sNN) = 62.4 GeV. For studying the...","name":"Figure 2"},{"@id":"https://doi.org/10.17182/hepdata.100592.v1/t5","@type":"Dataset","description":"The proton (anti-proton) over pion ratios versus pT at sqrt(sNN) = 62.4 and 200 GeV for central and peripheral collisions.","name":"Figure 4"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins747299?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/100592"}],"inLanguage":"en","name":"Energy dependence of $\\pi^{\\pm}$, $p$ and $\\bar{p}$ transverse momentum spectrafor Au+Au collisions at $\\sqrt{s_{\\mathrm {NN}}}$~=~62.4 and 200 GeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins747299?version=1","version":1}