{
  "annotation_id": "c793595d-5c65-4a32-adff-9723354a5071",
  "date_created": "2026-03-02T18:00:11.922000Z",
  "date_modified": "2026-03-02T18:00:11.922000Z",
  "file_hash": "d15c4859e021e26cccd677f47ea7658e927c26bb2ff569ebae4945df93d81808",
  "private": false,
  "record": {
    "abstract": "Isospin-breaking effects in nuclear matter are studied in the framework of a\nmedium-modified Skyrme model. The proposed effective Lagrangian incorporates\nboth the medium influence of the surrounding nuclear environment on the single\nnucleon properties and an explicit isospin-breaking effect in the mesonic\nsector. The approach predicts that the neutron-proton mass difference decreases\nin isospin-symmetric nuclear matter but by a very small amount only.",
    "arxiv_id": "nucl-th/0611066",
    "authors": [
      "Ulf-G. Mei\u00dfner",
      "A. M. Rakhimov",
      "A. Wirzba",
      "U. T. Yakhshiev"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1140/epja/i2006-10274-6",
    "journal_ref": "Eur.Phys.J.A31:357-364,2007",
    "title": "Neutron-proton mass difference in nuclear matter",
    "url": "https://arxiv.org/abs/nucl-th/0611066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5c540e37-33fb-4f98-b22e-b524f830a598",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}