8 Ağustos 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 274821, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2024-08-08", 
  "description": "<p>Using a sample of $448.1\u00d7{10}^{6}$ $\\psi \\left(2S\\right)$ events collected with the BESIII detector, we perform a study of the decay $J/\\psi \\to {K}^{+}{K}^{-}$ via $\\psi \\left(2S\\right)\\to {\\pi }^{+}{\\pi }^{-}J/\\psi $. The branching fraction of $J/\\psi \\to {K}^{+}{K}^{-}$ is determined to be ${B}_{{K}^{+}{K}^{-}}=\\left(3.072\u00b10.023\\left(\\mathrm{stat}\\right)\u00b10.050\\left(\\mathrm{syst}\\right)\\right)\u00d7{10}^{-4}$, which is consistent with previous measurements but with significantly improved precision.</p>", 
  "headline": "Precision measurement of the branching fraction of $J/\\psi \\to {K}^{+}{K}^{-}$ via $\\psi \\left(2S\\right)\\to {\\pi }^{+}{\\pi }^{-}J/\\psi $", 
  "identifier": 274821, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Precision measurement of the branching fraction of $J/\\psi \\to {K}^{+}{K}^{-}$ via $\\psi \\left(2S\\right)\\to {\\pi }^{+}{\\pi }^{-}J/\\psi $", 
  "url": "https://aperta.ulakbim.gov.tr/record/274821"
}