6 Ağustos 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1103/PhysRevD.110.032005", 
  "abstract": "<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>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physical Review D", 
  "id": "274829", 
  "issue": "3", 
  "issued": {
    "date-parts": [
      [
        2024, 
        8, 
        6
      ]
    ]
  }, 
  "title": "Study of ${e}^{+}{e}^{-}\\to {\\pi }^{+}{\\pi }^{-}{\\pi }^{0}$ at $\\sqrt{s}$ from 2.00 to 3.08 GeV at BESIII", 
  "type": "article-journal", 
  "volume": "110"
}