{
  "id": "1012.5949",
  "version": "v3",
  "published": "2010-12-29T14:36:59.000Z",
  "updated": "2015-07-17T08:17:19.000Z",
  "title": "Possible bound state of the double heavy meson-baryon system",
  "authors": [
    "Qing Xu",
    "Hongying Jin",
    "T. G. Steele"
  ],
  "comment": "11 pages, 3 figures, replace the old verson which does not correspond to the published version",
  "doi": "10.1103/PhysRevD.86.114032",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We calculate the two-pion exchange potential between a heavy meson and a heavy baryon. We find this potential is as strong as the one-pion exchange potential between two heavy mesons and is enough to bind $\\Lambda_b-\\bar B$. Though our result is sensitive to the cut-off, the value of the cut-off is in the reasonable region.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-03-21T07:15:29.000Z",
      "title": "Two-pseudoscalar Exchanges between Heavy Hadrons",
      "abstract": "We calculate the two-pion and two-kaon exchange potentials of $D\\bar{D}$ and $D\\bar{D}^{*}$ by using Gaussian form factor to regularize loop integrals. Although the magnitude of the two-pseudo-goldstone exchange is small as expected, it is not negligible in dynamics because it modifies the shape of the potential. We find the bound state of $D\\bar{D}^{*}$ starts to {appear} at the cut-off $\\Lambda=1360MeV$ after consideration of the two-pseudo-goldstone exchange, significantly reducing the discrepancy between {Chiral Perturbation Theory} and other phenomenological approaches.",
      "comment": "13 pages, 5 figures",
      "journal": null,
      "doi": null
    },
    {
      "version": "v3",
      "updated": "2015-07-17T08:17:19.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.Fe"
    ],
    "keywords": [
      "heavy hadrons",
      "two-pseudoscalar exchanges",
      "two-pseudo-goldstone exchange",
      "chiral perturbation theory",
      "two-kaon exchange potentials"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevD.86.114032",
      "journal": "Physical Review D",
      "year": 2012,
      "month": "Dec",
      "volume": 86,
      "number": 11,
      "pages": 114032,
      "publisher": "APS"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 882961,
      "adsabs": "2012PhRvD..86k4032X"
    }
  }
}