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Study of e+e−→pp¯ in the vicinity of ψ(3770)

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{
  "@context": "https://schema.org/", 
  "@id": 108759, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2014-01-01", 
  "description": "<p>Using 2917\u00a0pb\u22121 of data accumulated at 3.773\u00a0GeV , 44.5\u00a0pb\u22121 of data accumulated at 3.65\u00a0GeV and data accumulated during a \u03c8(3770) line-shape scan with the BESIII detector, the reaction e+e\u2212\u2192pp\u00af is studied considering a possible interference between resonant and continuum amplitudes. The cross section of e+e\u2212\u2192\u03c8(3770)\u2192pp\u00af , \u03c3(e+e\u2212\u2192\u03c8(3770)\u2192pp\u00af) , is found to have two solutions, determined to be (0.059\u22120.020+0.070\u00b10.012)\u00a0pb with the phase angle \u03d5=(255.8\u221226.6+39.0\u00b14.8)\u00b0 ( &lt;0.166\u00a0pb at the 90% confidence level), or \u03c3(e+e\u2212\u2192\u03c8(3770)\u2192pp\u00af)=(2.57\u22120.13+0.12\u00b10.12)\u00a0pb with \u03d5=(266.9\u22126.3+6.1\u00b10.9)\u00b0 both of which agree with a destructive interference. Using the obtained cross section of \u03c8(3770)\u2192pp\u00af , the cross section of pp\u00af\u2192\u03c8(3770) , which is useful information for the future PANDA experiment, is estimated to be either (9.8\u22123.9+11.8)\u00a0nb ( &lt;27.5\u00a0nb at 90% C.L.) or (425.6\u221243.7+42.9)\u00a0nb .</p>", 
  "headline": "Study of e+e\u2212\u2192pp\u00af in the vicinity of \u03c8(3770)", 
  "identifier": 108759, 
  "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 e+e\u2212\u2192pp\u00af in the vicinity of \u03c8(3770)", 
  "url": "https://aperta.ulakbim.gov.tr/record/108759"
}
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