1 Ocak 2015 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 108173, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2015-01-01", 
  "description": "<p>A search for the associated production of the Higgs boson with a top quark pair is performed in multilepton final states using 20.3 fb \u22121 of proton\u2013proton collision data recorded by the ATLAS experiment at s=8\u00a0TeV at the Large Hadron Collider. Five final states, targeting the decays H\u2192WW\u204e , \u03c4\u03c4 , and ZZ\u204e , are examined for the presence of the Standard Model (SM) Higgs boson: two same-charge light leptons ( e or \u03bc ) without a hadronically decaying \u03c4 lepton; three light leptons; two same-charge light leptons with a hadronically decaying \u03c4 lepton; four light leptons; and one light lepton and two hadronically decaying \u03c4 leptons. No significant excess of events is observed above the background expectation. The best fit for the tt\u00afH production cross section, assuming a Higgs boson mass of 125 GeV, is 2.1\u22121.2+1.4 times the SM expectation, and the observed (expected) upper limit at the 95% confidence level is 4.7 (2.4) times the SM rate. The p -value for compatibility with the background-only hypothesis is 1.8 \u03c3 ; the expectation in the presence of a Standard Model signal is 0.9 \u03c3 .</p>", 
  "headline": "Search for the associated production of the Higgs boson with a top quark pair in multilepton final states with the ATLAS detector", 
  "identifier": 108173, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Search for the associated production of the Higgs boson with a top quark pair in multilepton final states with the ATLAS detector", 
  "url": "https://aperta.ulakbim.gov.tr/record/108173"
}