1 Ocak 2022 Dergi makalesi Açık Erişim

CERN İşbirliği

JSON-LD (schema.org)

{
  "@context": "https://schema.org/", 
  "@id": 262531, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2022-01-01", 
  "description": "<p>By analyzing $\\left(448.1\u00b12.9\\right)\u00d7{10}^{6}\\text{}\\text{}\\psi \\left(3686\\right)$ events collected with the BESIII detector operating at the BEPCII collider, the decays of ${\\chi }_{cJ}\\to \\Lambda \\overline{\\Lambda }\\eta $ ($J=0$, 1, and 2) are observed for the first time with statistical significances of $13.9\\sigma $, $6.7\\sigma $, and $8.2\\sigma $, respectively. The product branching fractions of $\\psi \\left(3686\\right)\\to \\gamma {\\chi }_{cJ}$ and ${\\chi }_{cJ}\\to \\Lambda \\overline{\\Lambda }\\eta $ are measured. Dividing by the world averages of the branching fractions of $\\psi \\left(3686\\right)\\to \\phantom{\\rule{0ex}{0ex}}\\gamma {\\chi }_{cJ}$, the branching fractions of ${\\chi }_{cJ}\\to \\Lambda \\overline{\\Lambda }\\eta $ decays are determined to be $\\left(2.31\u00b10.30\u00b10.21\\right)\u00d7{10}^{-4}$, $\\left(5.86\u00b11.38\u00b10.68\\right)\u00d7{10}^{-5}$, and $\\left(1.05\u00b10.21\u00b10.15\\right)\u00d7{10}^{-4}$ for $J=0$, 1 and 2, respectively, where the first uncertainties are statistical and the second systematic.</p>", 
  "headline": "Observation of ${\\chi }_{cJ}\\to \\Lambda \\overline{\\Lambda }\\eta $", 
  "identifier": 262531, 
  "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 ${\\chi }_{cJ}\\to \\Lambda \\overline{\\Lambda }\\eta $", 
  "url": "https://aperta.ulakbim.gov.tr/record/262531"
}