{
  "annotation_id": "90ce2119-1b69-4fa0-98d8-85521080ec60",
  "date_created": "2026-03-02T18:00:04.564000Z",
  "date_modified": "2026-03-02T18:00:04.564000Z",
  "file_hash": "439a27188249bd404053cbc680237d23783aed12b9b4310a9c53d23f7e893a5f",
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  "record": {
    "abstract": "The in-medium chiral condensate is studied with a new approach which has the\nadvantage of no need for extra assumptions on the current mass derivatives of\nmodel parameters. It is shown that the pion-nucleon sigma term is 9/2 times the\naverage current mass of light quarks, if quark confinement is linear.\nConsidering both perturbative and non-perturbative interactions, the chiral\ncondensate decreases monotonously with increasing densities, approaching to\nzero at about 4 fm^{-3}.",
    "arxiv_id": "nucl-th/0412105",
    "authors": [
      "G. X. Peng"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/j.nuclphysa.2004.09.058",
    "journal_ref": "Nucl.Phys. A747 (2005) 75-83",
    "title": "Chiral condensates and size of the sigma term",
    "url": "https://arxiv.org/abs/nucl-th/0412105"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0820c9a8-5459-4ebc-a38d-42975369ba36",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}