17 Ekim 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1103/PhysRevD.110.072010", 
  "abstract": "<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>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physical Review D", 
  "id": "274645", 
  "issue": "7", 
  "issued": {
    "date-parts": [
      [
        2024, 
        10, 
        17
      ]
    ]
  }, 
  "title": "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", 
  "type": "article-journal", 
  "volume": "110"
}