{
  "annotation_id": "232f0f91-cef6-47f2-b89c-41088c68d503",
  "date_created": "2026-03-02T18:00:18.783000Z",
  "date_modified": "2026-03-02T18:00:18.783000Z",
  "file_hash": "e681aee1a768a989abaa0ec88a45d17d21d86a72ebea11cdbe76abe6db7b9292",
  "private": false,
  "record": {
    "abstract": "A confining, Goldstone theorem preserving, separable Ansatz for the ladder\nkernel of the two-body Bethe-Salpeter equation is constructed from\nphenomenologically efficacious $u$, $d$ and $s$ dressed-quark propagators. The\nsimplicity of the approach is its merit. It provides a good description of the\nground-state isovector-pseudoscalar, vector and axial-vector meson spectrum;\nfacilitates an exploration of the relative importance of various components of\nthe two-body Bethe-Salpeter amplitudes, showing that sub-leading Dirac\ncomponents are quantitatively important in the isovector-pseudoscalar meson\nchannels; and allows a scrutiny of the domain of applicability of ladder\ntruncation studies. A colour-antitriplet diquark spectrum is obtained.\nShortcomings of separable Ans\\\"atze and the ladder kernel are highlighted.",
    "arxiv_id": "nucl-th/9605027",
    "authors": [
      "C. J. Burden",
      "Lu Qian",
      "C. D. Roberts",
      "P. C. Tandy",
      "M. J. Thomson"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1103/PhysRevC.55.2649",
    "journal_ref": "Phys.Rev.C55:2649-2664,1997",
    "title": "Ground-state Spectrum of Light-quark Mesons",
    "url": "https://arxiv.org/abs/nucl-th/9605027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bd2f0bfb-0981-4160-b1d5-63da094b2a57",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}