{
  "annotation_id": "4d11d394-fc65-4559-ac44-1168493562a6",
  "date_created": "2026-03-02T18:00:11.670000Z",
  "date_modified": "2026-03-02T18:00:11.670000Z",
  "file_hash": "2fa49561969ec9b5dcef7f9bf08c91232d9e5d1241349bc92751a3bb2c770c52",
  "private": false,
  "record": {
    "abstract": "The self-energy of quarks is investigated for various models which are\ninspired by the Nambu--Jona-Lasinio (NJL) model. Including, beyond the\nHartree-Fock approximation, terms up to second-order in the quark interaction,\nthe real and imaginary parts of scalar and vector components of the self-energy\nare discussed. The second-order contributions depend on the energy and momentum\nof the quark under consideration. This leads to solutions of the Dirac equation\nwhich are significantly different from those of a free quark or a quark with\nconstant effective mass, as obtained in the Hartree-Fock approximation.",
    "arxiv_id": "nucl-th/9308019",
    "authors": [
      "P. P. Domitrovich",
      "H. M\u00fcther"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1088/0954-3899/20/12/005",
    "journal_ref": "J.Phys. G20 (1994) 1885-1900",
    "title": "On the Analytic Structure of the Quark Self-Energy in Nambu-Jona-   Lasinio Models",
    "url": "https://arxiv.org/abs/nucl-th/9308019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ba32be63-e3f2-477c-bb36-b7f343329e69",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}