{
  "id": "1501.02726",
  "version": "v1",
  "published": "2015-01-12T17:22:13.000Z",
  "updated": "2015-01-12T17:22:13.000Z",
  "title": "$B_s B^* K $ and $B_s B K^*$ vertices using QCD sum rules",
  "authors": [
    "A. Cerqueira Jr.",
    "B. Osório Rodrigues",
    "M. E. Bracco",
    "M. Nielsen"
  ],
  "comment": "17 pages, 10 figures",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The form factors and the coupling constant of the $B_s B^* K $ and $B_s B K^*$ vertices are calculated using the QCD sum rules method. Three point correlation functions are computed considering both the heavy and light mesons off-shell in each vertex, from which, after an extrapolation of the QCDSR results at the pole of the off-shell mesons, we obtain the coupling constant of the vertex. The form factors obtained have different behaviors but their simultaneous extrapolation reach the same value of the coupling constant $g_{B_s B^* K}=8.41 \\pm 1.23 $ and $g_{B_s BK^*}=3.3 \\pm 0.5$. We compare our result with other theoretical estimates and compute the uncertainties of the method.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-01-12T17:22:13.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coupling constant",
      "form factors",
      "qcd sum rules method",
      "light mesons off-shell",
      "point correlation functions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1016/j.nuclphysa.2015.01.007"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1338371
    }
  }
}