{
  "annotation_id": "81481b88-741f-429c-ae72-020e136d93be",
  "date_created": "2026-03-02T18:00:04.625000Z",
  "date_modified": "2026-03-02T18:00:04.625000Z",
  "file_hash": "7889e3bc6ac8da84a7ed87789db78e403c5a8d00c502a83a8c0838b02dd2ed85",
  "private": false,
  "record": {
    "abstract": "By applying the particle-number projection to the finite-temperature BCS\ntheory, the $S$-shaped heat capacity, which has recently been claimed to be a\nfingerprint of the superfluid-to-normal phase transition in nuclei, is\nreexamined. It is found that the particle-number (or number-parity) projection\ngives $S$-shapes in the heat capacity of nuclei which look qualitatively\nsimilar to the observed ones. These $S$-shapes are accounted for as effects of\nthe particle-number conservation on the quasiparticle excitations, and occur\neven when we keep the superfluidity at all temperatures by assuming a constant\ngap in the BCS theory. The present study illustrates significance of the\nconservation laws in studying phase transitions of finite systems.",
    "arxiv_id": "nucl-th/0503066",
    "authors": [
      "K. Esashika",
      "H. Nakada",
      "K. Tanabe"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.72.044303",
    "journal_ref": "Phys.Rev. C72 (2005) 044303",
    "title": "Effects of particle-number conservation on heat capacity of nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0503066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f7379331-a9e9-4d4f-ab76-3c1c060a67f7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}