1 Ocak 2014 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 108563, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2014-01-01", 
  "description": "<p>In high-energy collisions, the spatio-temporal size of the particle production region can be measured using the Bose\u2013Einstein correlations of identical bosons at low relative momentum. The source radii are typically extracted using two-pion correlations, and characterize the system at the last stage of interaction, called kinetic freeze-out. In low-multiplicity collisions, unlike in high-multiplicity collisions, two-pion correlations are substantially altered by background correlations, e.g. mini-jets. Such correlations can be suppressed using three-pion cumulant correlations. We present the first measurements of the size of the system at freeze-out extracted from three-pion cumulant correlations in pp, p\u2013Pb and Pb\u2013Pb collisions at the LHC with ALICE. At similar multiplicity, the invariant radii extracted in p\u2013Pb collisions are found to be 5\u201315% larger than those in pp, while those in Pb\u2013Pb are 35\u201355% larger than those in p\u2013Pb. Our measurements disfavor models which incorporate substantially stronger collective expansion in p\u2013Pb as compared to pp collisions at similar multiplicity.</p>", 
  "headline": "Freeze-out radii extracted from three-pion cumulants in pp, p\u2013Pb and Pb\u2013Pb collisions at the LHC", 
  "identifier": 108563, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Freeze-out radii extracted from three-pion cumulants in pp, p\u2013Pb and Pb\u2013Pb collisions at the LHC", 
  "url": "https://aperta.ulakbim.gov.tr/record/108563"
}