1 Ocak 2017 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 107513, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2017-01-01", 
  "description": "<p>The inclusive J/ \u03c8 production has been studied in Pb\u2013Pb and pp collisions at the centre-of-mass energy per nucleon pair sNN=5.02\u00a0TeV , using the ALICE detector at the CERN LHC. The J/ \u03c8 meson is reconstructed, in the centre-of-mass rapidity interval 2.5&lt;y&lt;4 and in the transverse-momentum range pT&lt;12\u00a0GeV/c , via its decay to a muon pair. In this Letter, we present results on the inclusive J/ \u03c8 cross section in pp collisions at s=5.02\u00a0TeV and on the nuclear modification factor RAA . The latter is presented as a function of the centrality of the collision and, for central collisions, as a function of the transverse momentum pT of the J/ \u03c8 . The measured RAA values indicate a suppression of the J/ \u03c8 in nuclear collisions and are then compared to our previous results obtained in Pb\u2013Pb collisions at sNN=2.76\u00a0TeV . The ratio of the RAA values at the two energies is also computed and compared to calculations of statistical and dynamical models. The numerical value of the ratio for central events (0\u201310% centrality) is 1.17\u00b10.04(stat)\u00b10.20(syst) . In central events, as a function of pT , a slight increase of RAA with collision energy is visible in the region 2&lt;pT&lt;6\u00a0GeV/c . Theoretical calculations qualitatively describe the measurements, within uncertainties.</p>", 
  "headline": "J/ \u03c8 suppression at forward rapidity in Pb\u2013Pb collisions at sNN=5.02\u00a0TeV", 
  "identifier": 107513, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "J/ \u03c8 suppression at forward rapidity in Pb\u2013Pb collisions at sNN=5.02\u00a0TeV", 
  "url": "https://aperta.ulakbim.gov.tr/record/107513"
}