{
  "id": "hep-ph/0003020",
  "version": "v2",
  "published": "2000-03-03T18:28:22.000Z",
  "updated": "2000-03-06T15:30:43.000Z",
  "title": "Lattice calculation of $1/p^2$ corrections to $α_s$ and of $Λ_{\\rm {QCD}}$ in the $\\widetilde{MOM}$ scheme",
  "authors": [
    "Ph. Boucaud",
    "G. Burgio",
    "F. Di Renzo",
    "J. P. Leroy",
    "J. Micheli",
    "C. Parrinello",
    "O. Pène",
    "C. Pittori",
    "J. Rodríguez-Quintero",
    "C. Roiesnel",
    "K. Sharkey"
  ],
  "comment": "21 pages, 3 figures",
  "journal": "JHEP 0004:006,2000",
  "doi": "10.1088/1126-6708/2000/04/006",
  "categories": [
    "hep-ph",
    "hep-lat"
  ],
  "abstract": "We report on very strong evidence of the occurrence of power terms in $\\as(p)$, the QCD running coupling constant in the $\\widetilde{MOM}$ scheme, by analyzing non-perturbative measurements from the lattice three-gluon vertex between 2.0 and 10.0 GeV at zero flavor. While putting forward the caveat that this definition of the coupling is a gauge dependent one, the general relevance of such an occurrence is discussed. We fit $\\Lambda_{\\bar{\\rm MS}}^{(n_f=0)}= 237 \\pm 3 ^{+ 0}_{-10}$ MeV in perfect agreement with the result obtained by the ALPHA group with a totally different method. The power correction to $\\as(p)$ is fitted to $(0.63\\pm 0.03 ^{+ 0.0}_{- 0.13}) {\\rm GeV}^2/p^2$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2000-03-06T15:30:43.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "lattice calculation",
      "lattice three-gluon vertex",
      "power terms",
      "qcd running coupling constant",
      "power correction"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP",
      "journal": "J. High Energ. Phys."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 524556
    }
  }
}