12 Ocak 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "DOI": "10.1103/PhysRevD.109.012006", 
  "abstract": "<p>The first observation of the decays $J/\\psi \\to \\overline{p}{\\Sigma }^{+}{K}_{S}^{0}$ and $J/\\psi \\to p{\\overline{\\Sigma }}^{-}{K}_{S}^{0}$ is reported using $\\left(10087\u00b144\\right)\u00d7{10}^{6}\\text{}\\text{}J/\\psi $ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of each channel are determined to be $B\\left(J/\\psi \\to \\overline{p}{\\Sigma }^{+}{K}_{S}^{0}\\right)=\\left(1.361\u00b10.006\u00b10.025\\right)\u00d7{10}^{-4}$, and $B\\left(J/\\psi \\to p{\\overline{\\Sigma }}^{-}{K}_{S}^{0}\\right)=\\left(1.352\u00b10.006\u00b10.025\\right)\u00d7{10}^{-4}$. The combined result is $B\\left(J/\\psi \\to \\overline{p}{\\Sigma }^{+}{K}_{S}^{0}+\\phantom{\\rule{0ex}{0ex}}c.c.\\right)=\\left(2.725\u00b10.009\u00b10.050\\right)\u00d7{10}^{-4}$, where the first uncertainty is statistical and the second systematic. The results presented are in good agreement with the branching fractions of the isospin partner decay $J/\\psi \\to p{K}^{-}{\\overline{\\Sigma }}^{0}+c.c.$</p>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physical Review D", 
  "id": "275327", 
  "issue": "1", 
  "issued": {
    "date-parts": [
      [
        2024, 
        1, 
        12
      ]
    ]
  }, 
  "title": "Observation and branching fraction measurement of the decay $J/\\psi \\to \\overline{p}{\\Sigma }^{+}{K}_{S}^{0}+c.c.$", 
  "type": "article-journal", 
  "volume": "109"
}