{
  "id": "0712.2990",
  "version": "v2",
  "published": "2007-12-18T16:17:17.000Z",
  "updated": "2008-04-17T14:53:11.000Z",
  "title": "Chiral effective field theory on the lattice at next-to-leading order",
  "authors": [
    "Bugra Borasoy",
    "Evgeny Epelbaum",
    "Hermann Krebs",
    "Dean Lee",
    "Ulf-G. Meißner"
  ],
  "comment": "30 pages, 10 figures, published version",
  "journal": "Eur.Phys.J.A35:343-355,2008",
  "doi": "10.1140/epja/i2008-10544-3",
  "categories": [
    "nucl-th",
    "hep-lat"
  ],
  "abstract": "We study nucleon-nucleon scattering on the lattice at next-to-leading order in chiral effective field theory. We determine phase shifts and mixing angles from the properties of two-nucleon standing waves induced by a hard spherical wall in the center-of-mass frame. At fixed lattice spacing we test model independence of the low-energy effective theory by computing next-to-leading-order corrections for two different leading-order lattice actions. The first leading-order action includes instantaneous one-pion exchange and same-site contact interactions. The second leading-order action includes instantaneous one-pion exchange and Gaussian-smeared interactions. We find that in each case the results at next-to-leading order are accurate up to corrections expected at higher order.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-04-17T14:53:11.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.30.-x",
      "13.75.Cs",
      "21.45.Bc"
    ],
    "keywords": [
      "chiral effective field theory",
      "next-to-leading order",
      "instantaneous one-pion exchange",
      "determine phase shifts",
      "same-site contact interactions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal A",
      "year": 2008,
      "month": "Mar",
      "volume": 35,
      "number": 3,
      "pages": 343
    },
    "note": {
      "typesetting": "TeX",
      "pages": 30,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 770809,
      "adsabs": "2008EPJA...35..343B"
    }
  }
}