1 Ocak 2014 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1016/j.physletb.2014.06.013", 
  "abstract": "<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>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physics Letters B", 
  "id": "108759", 
  "issued": {
    "date-parts": [
      [
        2014, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Study of e+e\u2212\u2192pp\u00af in the vicinity of \u03c8(3770)", 
  "type": "article-journal"
}