{
  "id": "0901.2775",
  "version": "v1",
  "published": "2009-01-19T07:53:44.000Z",
  "updated": "2009-01-19T07:53:44.000Z",
  "title": "Measurement of the e+e- -> J/psi ccbar cross section at \\sqrt{s} ~10.6 GeV",
  "authors": [
    "P. Pakhlov"
  ],
  "comment": "9 pages, 4 figures",
  "journal": "Phys.Rev.D79:071101,2009",
  "doi": "10.1103/PhysRevD.79.071101",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We present a new measurement of the e+e- -> J/psi ccbar cross section where the ccbar pair can fragment either into charmed hadrons or a charmonium state. In the former case the J/psi and a charmed hadron are reconstructed, while the latter process is measured using the recoil mass technique, which allows the identification of two-body final states without reconstruction of one of the charmonia. The measured e+e- -> J/psi ccbar cross section is (0.74 +- 0.08 + 0.09 - 0.08) pb, and the e+e- -> J/psi non-ccbar cross section is (0.43 +- 0.09 +-0.09) pb. We note that the measured cross sections are obtained from a data sample with the multiplicity of charged tracks in the event larger than four; corrections for the effect of this requirement are not performed as this cannot be done in a model-independent way. The analysis is based on a data sample with an integrated luminosity of 673/fb recorded near the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- asymmetric-energy collider.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-01-19T07:53:44.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.40.Gx",
      "13.66.Bc",
      "12.38.Bx"
    ],
    "keywords": [
      "j/psi ccbar cross section",
      "measurement",
      "data sample",
      "j/psi non-ccbar cross section",
      "charmed hadron"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2009,
      "month": "Apr",
      "volume": 79,
      "number": 7,
      "pages": "071101"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 811289,
      "adsabs": "2009PhRvD..79g1101P"
    }
  }
}