1 Ocak 2021 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 240590, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "<p>Born cross sections for the processes ${e}^{+}{e}^{-}\\to \\omega \\eta $ and ${e}^{+}{e}^{-}\\to \\omega {\\pi }^{0}$ have been determined for center-of-mass energies between 2.00 and 3.08 GeV with the BESIII detector at the BEPCII collider. The results obtained in this work are consistent with previous measurements but with improved precision. Two resonant structures are observed. In the ${e}^{+}{e}^{-}\\to \\omega \\eta $ cross sections, a resonance with a mass of $\\left(2176&plusmn;24&plusmn;3\\right)\\phantom{\\rule{0.2em}{0ex}}\\text{MeV}/{c}^{2}$ and a width of $\\left(89&plusmn;50&plusmn;5\\right)\\phantom{\\rule{0.2em}{0ex}}\\text{MeV}$ is observed with a significance of 6.2&sigma;. Its properties are consistent with the $\\varphi \\left(2170\\right)$. In the ${e}^{+}{e}^{-}\\to \\omega {\\pi }^{0}$ cross sections, a resonance denoted $Y\\left(2040\\right)$ is observed with a significance of more than 10&sigma;. Its mass and width are determined to be $\\left(2034&plusmn;13&plusmn;9\\right)\\phantom{\\rule{0.2em}{0ex}}\\text{MeV}/{c}^{2}$ and $\\left(234&plusmn;30&plusmn;25\\right)\\phantom{\\rule{0.2em}{0ex}}\\text{MeV}$, respectively, where the first uncertainties are statistical and the second ones are systematic.</p>", 
  "headline": "Observation of a resonant structure in \u2192 And Another in \u2192 at center-of-mass energies between 2.00 and 3.08 GeV", 
  "identifier": 240590, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Observation of a resonant structure in \u2192 And Another in \u2192 at center-of-mass energies between 2.00 and 3.08 GeV", 
  "url": "https://aperta.ulakbim.gov.tr/record/240590"
}