16 Nisan 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1103/PhysRevD.109.072008", 
  "abstract": "<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>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physical Review D", 
  "id": "275137", 
  "issue": "7", 
  "issued": {
    "date-parts": [
      [
        2024, 
        4, 
        16
      ]
    ]
  }, 
  "title": "Study of excited $\\Xi $ states in $\\psi \\left(3686\\right)\\to {K}^{-}\\Lambda {\\overline{\\Xi }}^{+}+c.c.$", 
  "type": "article-journal", 
  "volume": "109"
}