{
  "id": "hep-ph/0311369",
  "version": "v1",
  "published": "2003-11-28T15:48:52.000Z",
  "updated": "2003-11-28T15:48:52.000Z",
  "title": "Electromagnetic form factor of the pion in the space- and time-like regions within the front-form dynamics",
  "authors": [
    "J. P. B. C. de Melo",
    "T. Frederico",
    "E. Pace",
    "G. Salme`"
  ],
  "comment": "9 pages + 4 figures. To appear in Phys. Lett. B",
  "journal": "Phys.Lett. B581 (2004) 75-81",
  "doi": "10.1016/j.physletb.2003.11.072",
  "categories": [
    "hep-ph"
  ],
  "abstract": "The pion electromagnetic form factor is calculated in the space- and time-like regions from -10 $(GeV/c)^2$ up to 10 $(GeV/c)^2$, within a front-form model. The dressed photon vertex where a photon decays in a quark-antiquark pair is depicted generalizing the vector meson dominance ansatz, by means of the vector meson vertex functions. An important feature of our model is the description of the on-mass-shell vertex functions in the valence sector, for the pion and the vector mesons, through the front-form wave functions obtained within a realistic quark model. The theoretical results show an excellent agreement with the data in the space-like region, while in the time-like region the description is quite encouraging.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-11-28T15:48:52.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.Ki",
      "12.40.Vv",
      "13.40.Gp",
      "14.40.Aq"
    ],
    "keywords": [
      "time-like region",
      "front-form dynamics",
      "vector meson vertex functions",
      "pion electromagnetic form factor",
      "vector meson dominance ansatz"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 634186
    }
  }
}