{
  "annotation_id": "fa0f1417-d260-4505-9e29-41742a151a5a",
  "date_created": "2026-03-02T18:00:07.772000Z",
  "date_modified": "2026-03-02T18:00:07.772000Z",
  "file_hash": "4f364c08dabaed7cd862cfe2e62348d2c78807da2d713d3153397434ed96fdf0",
  "private": false,
  "record": {
    "abstract": "We explore the viability of using solely spacelike information about a\nSchwinger function to extract properties of bound states. In a concrete example\nit is not possible to determine properties of states with masses \\gsim 1.2 GeV.\nModern Dyson-Schwinger equation methods supply a well-constrained tool that\nprovide access to hadron masses and \\sigma-terms. We report values of the\nlatter for a range of hadrons. Of interest is analysis relating to a u,d scalar\nmeson, which is compatible with a picture of the lightest 0^{++} as a bound\nstate of a dressed-quark and -antiquark supplemented by a material pion cloud.\nA constituent-quark \\sigma-term is defined, which affords a means for assessing\nthe flavour-dependence of dynamical chiral symmetry breaking.",
    "arxiv_id": "nucl-th/0512048",
    "authors": [
      "A. Hoell",
      "P. Maris",
      "C. D. Roberts",
      "S. V. Wright"
    ],
    "categories": [
      "nucl-th",
      "hep-lat",
      "hep-ph"
    ],
    "doi": "10.1016/j.nuclphysbps.2006.08.010",
    "journal_ref": "Nucl.Phys.Proc.Suppl.161:87-94,2006",
    "title": "Schwinger functions and light-quark bound states, and sigma terms",
    "url": "https://arxiv.org/abs/nucl-th/0512048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b137bb7a-8a0d-488a-a1c0-98a25a213e35",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}