16 Nisan 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 275137, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2024-04-16", 
  "description": "<p>Based on a sample of $\\left(448.1\u00b12.9\\right)\u00d7{10}^{6}$ $\\psi \\left(3686\\right)$ events collected with the BESIII detector at BEPCII, the decays of $\\psi \\left(3686\\right)\\to {K}^{-}\\Lambda {\\overline{\\Xi }}^{+}+c.c.$ with ${\\overline{\\Xi }}^{+}\\to \\overline{\\Lambda }{\\pi }^{+}$, $\\overline{\\Lambda }\\to \\overline{p}{\\pi }^{+}$ are studied. We investigate the two excited resonances, $\\Xi \\left(1690{\\right)}^{-}$ and $\\Xi \\left(1820{\\right)}^{-}$, which are each observed with large significance ($\\gg 10\\sigma $) in the ${K}^{-}\\Lambda $ invariant mass distributions. A partial wave analysis is performed, and the spin-parities of $\\Xi \\left(1690{\\right)}^{-}$ and $\\Xi \\left(1820{\\right)}^{-}$ are measured to be ${\\frac{1}{2}}^{-}$ and ${\\frac{3}{2}}^{-}$, respectively. The masses, widths, and product branching fractions of $\\Xi \\left(1690{\\right)}^{-}$ and $\\Xi \\left(1820{\\right)}^{-}$ are also measured.</p>", 
  "headline": "Study of excited $\\Xi $ states in $\\psi \\left(3686\\right)\\to {K}^{-}\\Lambda {\\overline{\\Xi }}^{+}+c.c.$", 
  "identifier": 275137, 
  "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 excited $\\Xi $ states in $\\psi \\left(3686\\right)\\to {K}^{-}\\Lambda {\\overline{\\Xi }}^{+}+c.c.$", 
  "url": "https://aperta.ulakbim.gov.tr/record/275137"
}