1 Ocak 2014 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1016/j.physletb.2014.07.011", 
  "abstract": "<p>Transverse momentum spectra of \u03c0\u00b1 , K\u00b1 and p(p\u00af) up to pT=20 GeV/c at mid-rapidity in pp, peripheral (60\u201380%) and central (0\u20135%) Pb\u2013Pb collisions at sNN=2.76 TeV have been measured using the ALICE detector at the Large Hadron Collider. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT\u22483 GeV/c in central Pb\u2013Pb collisions. Below the peak, pT&lt;3 GeV/c , both ratios are in good agreement with hydrodynamical calculations, suggesting that the peak itself is dominantly the result of radial flow rather than anomalous hadronization processes. For pT&gt;10 GeV/c particle ratios in pp and Pb\u2013Pb collisions are in agreement and the nuclear modification factors for \u03c0\u00b1 , K\u00b1 and p(p\u00af) indicate that, within the systematic and statistical uncertainties, the suppression is the same. This suggests that the chemical composition of leading particles from jets in the medium is similar to that of vacuum jets.</p>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physics Letters B", 
  "id": "108711", 
  "issued": {
    "date-parts": [
      [
        2014, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Production of charged pions, kaons and protons at large transverse momenta in pp and Pb\u2013Pb collisions at sNN=2.76 TeV", 
  "type": "article-journal"
}