{
  "id": "1310.1770",
  "version": "v2",
  "published": "2013-10-07T13:13:46.000Z",
  "updated": "2013-11-11T07:16:05.000Z",
  "title": "Transition from a relativistic constituent-quark model to the quantum-chromodynamical asymptotics: a quantitative description of the pion electromagnetic form factor at intermediate values of the momentum transfer",
  "authors": [
    "S. V. Troitsky",
    "V. E. Troitsky"
  ],
  "comment": "7 pages, RevTex 4.1, 5 figures. V2: a reference added, minor textual changes, version accepted by Phys. Rev. D",
  "journal": "Phys. Rev. D 88, 093005 (2013)",
  "doi": "10.1103/PhysRevD.88.093005",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We adopt a non-perturbative relativistic constituent-quark model for the pi-meson electromagnetic form factor, which have successfully predicted experimental results, and supplement it with the effective momentum-dependent quark mass to study quantitatively the transition to the perturbative QCD asymptotics. The required asymptotical behaviour (including both the Q^{-2} fall-off and the correct coefficient) settles down automatically when the quark mass is switched off; however, the present experimental data on the form factor suggest that this cannot happen at the values of the momentum transfer below ~10 GeV^2. The effective constituent-quark mass below this scale acquires substantial non-perturbative contributions.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-11-11T07:16:05.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.40.Gp",
      "14.40.Be",
      "12.39.Ki",
      "11.10.Jj"
    ],
    "keywords": [
      "pion electromagnetic form factor",
      "relativistic constituent-quark model",
      "momentum transfer",
      "intermediate values",
      "quantum-chromodynamical asymptotics"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2013,
      "month": "Nov",
      "volume": 88,
      "number": 9,
      "pages": "093005"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1257405,
      "adsabs": "2013PhRvD..88i3005T"
    }
  }
}