{
  "id": "1303.0737",
  "version": "v3",
  "published": "2013-03-04T15:51:00.000Z",
  "updated": "2014-09-13T06:37:03.000Z",
  "title": "Centrality dependence of $\\rm \\mathbf π$, K, p production in Pb-Pb collisions at $\\sqrt{s_{\\rm NN}}$ = 2.76 TeV",
  "authors": [
    "ALICE Collaboration"
  ],
  "comment": "42 pages, 17 captioned figures, 6 tables, authors from page 36, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/501",
  "journal": "Phys. Rev. C 88, 044910 (2013)",
  "doi": "10.1103/PhysRevC.88.044910",
  "categories": [
    "hep-ex",
    "nucl-ex"
  ],
  "abstract": "In this paper measurements are presented of $\\rm \\pi$$^+$, $\\rm \\pi$$^-$, K$^+$, K$^-$, p and $\\overline{\\rm p}$ production at mid-rapidity < 0.5, in Pb-Pb collisions at $\\sqrt{s_{\\rm NN}} = 2.76$ TeV as a function of centrality. The measurement covers the transverse momentum ($p_{\\rm T}$) range from 100, 200, 300 MeV/$c$ up to 3, 3, 4.6 GeV/$c$, for $\\rm\\pi$, K, and p respectively. The measured $p_{\\rm T}$ distributions and yields are compared to expectations based on hydrodynamic, thermal and recombination models. The spectral shapes of central collisions show a stronger radial flow than measured at lower energies, which can be described in hydrodynamic models. In peripheral collisions, the $p_{\\rm T}$ distributions are not well reproduced by hydrodynamic models. Ratios of integrated particle yields are found to be nearly independent of centrality. The yield of protons normalized to pions is a factor ~1.5 lower than the expectation from thermal models.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-07-25T14:49:59.000Z",
      "title": "Centrality dependence of π, K, p production in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV",
      "abstract": "In this paper measurements are presented of {\\pi}+, {\\pi}-, K+, K-, p and antiproton production at mid-rapidity < 0.5, in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV as a function of centrality. The measurement covers the transverse momentum pt range from 100, 200, 300 MeV/c up to 3, 3, 4.6 GeV/c, for {\\pi}, K, and p respectively. The measured pt distributions and yields are compared to expectations based on hydrodynamic, thermal and recombination models. The spectral shapes of central collisions show a stronger radial flow than measured at lower energies, which can be described in hydrodynamic models. In peripheral collisions, the pt distributions are not well reproduced by hydrodynamic models. Ratios of integrated particle yields are found to be nearly independent of centrality. The yield of protons normalized to pions is a factor ~1.5 lower than the expectation from thermal models.",
      "comment": "42 pages, 17 figures, 6 tables, authors from page 36 to page 39. Version 2: minor wording updates after referee report; corrected error in the <pt> uncertainty evaluation"
    },
    {
      "version": "v3",
      "updated": "2014-09-13T06:37:03.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "25.75.Dw",
      "24.10.Nz",
      "25.75.Ag"
    ],
    "keywords": [
      "pb-pb collisions",
      "centrality dependence",
      "production",
      "pt distributions",
      "transverse momentum pt range"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review C",
      "year": 2013,
      "month": "Oct",
      "volume": 88,
      "number": 4,
      "pages": "044910"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 42,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1222333,
      "adsabs": "2013PhRvC..88d4910A"
    }
  }
}