{
  "id": "hep-ph/0611109",
  "version": "v2",
  "published": "2006-11-09T00:02:25.000Z",
  "updated": "2007-05-25T17:16:32.000Z",
  "title": "Collisional dissociation of heavy mesons in dense QCD matter",
  "authors": [
    "Azfar Adil",
    "Ivan Vitev"
  ],
  "comment": "8 pages, 5 figures. Figures and references updated, typos corrected. As published in Phys.Lett.B",
  "journal": "Phys.Lett.B649:139-146,2007",
  "doi": "10.1016/j.physletb.2007.03.050",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In the framework of the reaction operator approach we calculate and resum the multiple elastic scattering of a fast $q \\bar{q}$ system traversing dense nuclear matter. We derive the collisional broadening of the meson's transverse momentum and the distortion of its intrinsic light cone wave function. The medium-induced dissociation probability of heavy mesons is shown to be sensitive to the opacity of the quark-gluon plasma and the time dependence of its formation and evolution. We solve the system of coupled rate equations that describe the competition between the fragmentation of $c$- and $b$-quarks and the QGP-induced dissociation of the $D$- and $B$-mesons to evaluate the quenching of heavy hadrons in nucleus-nucleus collisions. In contrast to previous results on heavy quark modification, this approach predicts suppression of $B$-mesons comparable to that of $D$-mesons at transverse momenta as low as $p_T \\sim 10$ GeV. It allows for an improved description of the large attenuation of non-photonic electrons in central Au+Au reactions at RHIC.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-05-25T17:16:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "24.85.+p",
      "12.38.Mh",
      "25.75.-q"
    ],
    "keywords": [
      "dense qcd matter",
      "heavy mesons",
      "collisional dissociation",
      "intrinsic light cone wave function",
      "system traversing dense nuclear matter"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 731296
    }
  }
}