{
  "id": "hep-ph/0006345",
  "version": "v3",
  "published": "2000-06-29T22:18:27.000Z",
  "updated": "2000-07-31T23:55:38.000Z",
  "title": "Computation of $\\barΛ$ and $λ_1$ with Lattice QCD",
  "authors": [
    "Andreas S. Kronfeld",
    "James N. Simone"
  ],
  "comment": "7 pp, 4 figs (in v2 Fig. 4 now shows Ref. 13, as advertised); in v3 error in BLM scale is corrected",
  "journal": "Phys.Lett. B490 (2000) 228-235; Erratum-ibid. B495 (2000) 441-442",
  "doi": "10.1016/S0370-2693(00)01277-6",
  "categories": [
    "hep-ph",
    "hep-lat"
  ],
  "abstract": "We pursue a new method, based on lattice QCD, for determining the quantities $\\bar{\\Lambda}$, $\\lambda_1$, and $\\lambda_2$ of heavy-quark effective theory. We combine Monte Carlo data for the meson mass spectrum with perturbative calculations of the short-distance behavior, to extract $\\bar{\\Lambda}$ and $\\lambda_1$ from a formula from HQET. Taking into account uncertainties from fitting the mass dependence and from taking the continuum limit, we find $\\bar{\\Lambda} = 0.68{+0.02}_{-0.12} \\text{GeV}$ and $\\lambda_1 = -(0.45 \\pm 0.12) \\text{GeV}^2$ in the quenched approximation.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2000-07-31T23:55:38.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.38.Gc",
      "12.39.Hg",
      "13.20.-v"
    ],
    "keywords": [
      "lattice qcd",
      "computation",
      "meson mass spectrum",
      "monte carlo data",
      "account uncertainties"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 529489
    }
  }
}