{
  "annotation_id": "0bbac423-a1ba-494f-9dcf-873afeb05579",
  "date_created": "2026-03-02T18:00:28.546000Z",
  "date_modified": "2026-03-02T18:00:28.546000Z",
  "file_hash": "f58d70f237383fd53570000f031e711613a36b3fb423b69ce9f18615969a3161",
  "private": false,
  "record": {
    "abstract": "A Wilsonian renormalisation group is used to study nonrelativistic two-body\nscattering by a short-ranged potential. We identify two fixed points: a trivial\none and one describing systems with a bound state at zero energy. The\neigenvalues of the linearised renormalisation group are used to assign a\nsystematic power-counting to terms in the potential near each of these fixed\npoints. The expansion around the nontrivial fixed point is shown to be\nequivalent to the effective-range expansion.",
    "arxiv_id": "nucl-th/9911048",
    "authors": [
      "Michael C. Birse",
      "Judith A. McGovern",
      "Keith G. Richardson"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1063/1.1303016",
    "journal_ref": "PiN Newslett.15:280-283,1999",
    "title": "A renormalisation-group treatment of two-body scattering",
    "url": "https://arxiv.org/abs/nucl-th/9911048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "551da3fa-a692-46e5-a01a-7364e3dd42d9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}