{
  "annotation_id": "eb33a65b-8870-42fe-b07e-95f4c4a3a2bb",
  "date_created": "2026-03-02T18:00:22.451000Z",
  "date_modified": "2026-03-02T18:00:22.451000Z",
  "file_hash": "9c3e7f341fde00e15e0e417e3ad20f21ea210957ec28db2e1f7a0023e32528c3",
  "private": false,
  "record": {
    "abstract": "The giant collective modes in asymmetric nuclear matter are investigated\nwithin a dynamic relaxation time approximation. We derive a coupled dispersion\nrelation and show that two sources of coupling appear: (i) a coupling of\nisoscalar and isovector modes due to different mean-fields acting and (ii) an\nexplicit new coupling in asymmetric matter due to collisional interaction. We\nshow that the latter one is responsible for a new mode arising besides\nisovector and isoscalar modes.",
    "arxiv_id": "nucl-th/9809035",
    "authors": [
      "K. Morawetz",
      "U. Fuhrmann",
      "R. Walke"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(99)00083-4",
    "journal_ref": "Nucl.Phys. A649 (1999) 348-354",
    "title": "Damping of giant resonances in asymmetric nuclear matter",
    "url": "https://arxiv.org/abs/nucl-th/9809035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a2fb70de-6329-45f1-9cb4-984c0e8c7962",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}