1 Ocak 2016 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 107915, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2016-01-01", 
  "description": "<p>In the pp\u2192tt\u00af process the angular distributions of top and anti-top quarks are expected to present a subtle difference, which could be enhanced by processes not included in the Standard Model. This Letter presents a measurement of the charge asymmetry in events where the top-quark pair is produced with a large invariant mass. The analysis is performed on 20.3 fb \u22121 of pp collision data at s=8TeV collected by the ATLAS experiment at the LHC, using reconstruction techniques specifically designed for the decay topology of highly boosted top quarks. The charge asymmetry in a fiducial region with large invariant mass of the top-quark pair ( mtt\u00af&gt;0.75\u00a0TeV ) and an absolute rapidity difference of the top and anti-top quark candidates within \u22122&lt;|yt|\u2212|yt\u00af|&lt;2 is measured to be 4.2\u00b13.2% , in agreement with the Standard Model prediction at next-to-leading order. A differential measurement in three tt\u00af mass bins is also presented.</p>", 
  "headline": "Measurement of the charge asymmetry in highly boosted top-quark pair production in s=8\u00c2 TeV pp collision data collected by the ATLAS experiment", 
  "identifier": 107915, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Measurement of the charge asymmetry in highly boosted top-quark pair production in s=8\u00c2 TeV pp collision data collected by the ATLAS experiment", 
  "url": "https://aperta.ulakbim.gov.tr/record/107915"
}