6 Ağustos 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 274829, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2024-08-06", 
  "description": "<p>With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with the BESIII detector at the BEPCII collider, a partial wave analysis on the ${e}^{+}{e}^{-}\\to {\\pi }^{+}{\\pi }^{-}{\\pi }^{0}$ process is performed. The Born cross sections for ${e}^{+}{e}^{-}\\to {\\pi }^{+}{\\pi }^{-}{\\pi }^{0}$ and its intermediate processes ${e}^{+}{e}^{-}\\to \\rho \\pi $ and $\\rho \\left(1450\\right)\\pi $ are measured as functions of $\\sqrt{s}$. The results for ${e}^{+}{e}^{-}\\to {\\pi }^{+}{\\pi }^{-}{\\pi }^{0}$ are consistent with previous results measured with the initial state radiation method within one standard deviation, and improve the uncertainty by a factor of ten. By fitting the line shapes of the Born cross sections for the ${e}^{+}{e}^{-}\\to \\rho \\pi $ and ${e}^{+}{e}^{-}\\to \\rho \\left(1450\\right)\\pi $, a structure with mass $M=2119\u00b111\u00b115\\text{}\\text{}\\mathrm{MeV}/{c}^{2}$ and width $\\Gamma =69\u00b130\u00b15\\text{}\\text{}\\mathrm{MeV}$ is observed with a significance of $5.9\\sigma $, where the first uncertainties are statistical and the second ones are systematic. This structure can be interpreted as an excited $\\omega $ state.</p>", 
  "headline": "Study of ${e}^{+}{e}^{-}\\to {\\pi }^{+}{\\pi }^{-}{\\pi }^{0}$ at $\\sqrt{s}$ from 2.00 to 3.08 GeV at BESIII", 
  "identifier": 274829, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Study of ${e}^{+}{e}^{-}\\to {\\pi }^{+}{\\pi }^{-}{\\pi }^{0}$ at $\\sqrt{s}$ from 2.00 to 3.08 GeV at BESIII", 
  "url": "https://aperta.ulakbim.gov.tr/record/274829"
}