{
  "id": "nucl-th/0509005",
  "version": "v1",
  "published": "2005-09-01T13:28:00.000Z",
  "updated": "2005-09-01T13:28:00.000Z",
  "title": "Electromagnetic form factors of the nucleon in chiral perturbation theory including vector mesons",
  "authors": [
    "Matthias R. Schindler",
    "Jambul Gegelia",
    "Stefan Scherer"
  ],
  "comment": "9 pages, 3 figures, accepted for publication in EPJA",
  "journal": "Eur.Phys.J. A26 (2005) 1-5",
  "categories": [
    "nucl-th",
    "hep-ph",
    "nucl-ex"
  ],
  "abstract": "We calculate the electromagnetic form factors of the nucleon up to fourth order in manifestly Lorentz-invariant chiral perturbation theory with vector mesons as explicit degrees of freedom. A systematic power counting for the renormalized diagrams is implemented using both the extended on-mass-shell renormalization scheme and the reformulated version of infrared regularization. We analyze the electric and magnetic Sachs form factors, $G_E$ and $G_M$, and compare our results with the existing data. The inclusion of vector mesons results in a considerably improved description of the form factors. We observe that the most dominant contributions come from tree-level diagrams, while loop corrections with internal vector meson lines are small.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-09-01T13:28:00.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.Fe",
      "13.40.Gp"
    ],
    "keywords": [
      "electromagnetic form factors",
      "manifestly lorentz-invariant chiral perturbation theory",
      "internal vector meson lines",
      "magnetic sachs form factors",
      "dominant contributions come"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1140/epja/i2005-10145-8"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 691249
    }
  }
}