17 Ekim 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 274645, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2024-10-17", 
  "description": "<p>The inclusive cross section for the production of a single top quark in association with a $W$ boson is measured using $140\\text{}\\text{}{\\mathrm{fb}}^{-1}$ of proton-proton collision data collected with the ATLAS detector at $\\sqrt{s}=13\\text{}\\text{}\\mathrm{TeV}$. Events containing two charged leptons and at least one jet identified as originating from a $b$-quark are selected. A multivariate discriminant is constructed to separate the $tW$ signal from the $t\\overline{t}$ background. The cross section is extracted using a profile likelihood fit to the signal and control regions and it is measured to be ${\\sigma }_{tW}=7{5}_{-14}^{+15}\\text{}\\text{}\\mathrm{pb}$, in good agreement with the Standard Model prediction. The measured cross section is used to extract a value for the left-handed form factor at the $Wtb$ vertex times the Cabibbo-Kobayashi-Maskawa matrix element $|{f}_{\\mathrm{LV}}{V}_{tb}|$ of $0.97\u00b10.10$.</p>", 
  "headline": "Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $\\sqrt{s}=13\\text{}\\text{}\\mathrm{TeV}$ with the ATLAS detector", 
  "identifier": 274645, 
  "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 single top-quark production in association with a $W$ boson in $pp$ collisions at $\\sqrt{s}=13\\text{}\\text{}\\mathrm{TeV}$ with the ATLAS detector", 
  "url": "https://aperta.ulakbim.gov.tr/record/274645"
}