{
  "id": "0904.2069",
  "version": "v2",
  "published": "2009-04-14T08:24:10.000Z",
  "updated": "2009-05-04T07:04:56.000Z",
  "title": "QED contribution to the production of J/ψ+c\\bar{c}+X at the Tevatron and LHC",
  "authors": [
    "Zhi-Guo He",
    "Rong Li",
    "Jian-Xiong Wang"
  ],
  "comment": "14 pages, 6 figures, version accepted for publication in Phys Rev D",
  "journal": "Phys.Rev.D79:094003,2009",
  "doi": "10.1103/PhysRevD.79.094003",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We calculate \\alpha^{2}\\alpha_{s}^{2} order QED contribution to J/\\psi production in pp(\\bar{p})\\to J/\\psi+c\\bar{c} color-singlet process at the Tevatron and LHC in the framework of non-relativistic QCD. The contribution of the interference between the \\alpha^{2}\\alpha_{s}^{2} QED and \\alpha_{s}^{4} QCD is also taken into account. The J/\\psi production associated with a charm quark pair could be a measurable signal at hadron collider experiment. Our calculations show that by including the QED contribution, the p_{t} distribution is enhanced by a factor of 1.5 (1.9) at the Tevatron (LHC) at p_{t}=50 (100) GeV. In addition, the polarization of J/\\psi turns from unpolarized in all region to increasingly transverse when p_{t} becomes larger.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-05-04T07:04:56.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.85.Ni",
      "14.40.Gx",
      "12.38.Bx"
    ],
    "keywords": [
      "production",
      "charm quark pair",
      "hadron collider experiment",
      "order qed contribution",
      "color-singlet process"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2009,
      "month": "May",
      "volume": 79,
      "number": 9,
      "pages": "094003"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 817900,
      "adsabs": "2009PhRvD..79i4003H"
    }
  }
}