17 Ocak 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 275317, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2024-01-17", 
  "description": "<p>Based on $4.4\\text{}\\text{}{\\mathrm{fb}}^{-1}$ of ${e}^{+}{e}^{-}$ annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure $W$-boson-exchange decay ${\\Lambda }_{c}^{+}\\to {\\Xi }^{0}{K}^{+}$ is studied with a full angular analysis. The corresponding decay asymmetry is measured for the first time to be ${\\alpha }_{{\\Xi }^{0}{K}^{+}}=0.01\u00b10.16\\left(\\mathrm{stat}\\right)\u00b10.03\\left(\\mathrm{syst}\\right)$. This result reflects the noninterference effect between the $S$- and $P$-wave amplitudes. The phase shift between $S$- and $P$-wave amplitudes has two solutions, which are ${\\delta }_{p}-{\\delta }_{s}=-1.55\u00b10.25\\left(\\mathrm{stat}\\right)\u00b10.05\\left(\\mathrm{syst}\\right)\\text{}\\text{}\\mathrm{rad}$ or $1.59\u00b10.25\\left(\\mathrm{stat}\\right)\u00b10.05\\left(\\mathrm{syst}\\right)\\text{}\\text{}\\mathrm{rad}$.</p>", 
  "headline": "First Measurement of the Decay Asymmetry in the Pure $W$-Boson-Exchange Decay ${\\Lambda }_{c}^{+}\\to {\\Xi }^{0}{K}^{+}$", 
  "identifier": 275317, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "First Measurement of the Decay Asymmetry in the Pure $W$-Boson-Exchange Decay ${\\Lambda }_{c}^{+}\\to {\\Xi }^{0}{K}^{+}$", 
  "url": "https://aperta.ulakbim.gov.tr/record/275317"
}