{
  "annotation_id": "04e9f701-bb13-4fd8-8480-48ec73bd7478",
  "date_created": "2026-03-02T18:00:04.754000Z",
  "date_modified": "2026-03-02T18:00:04.754000Z",
  "file_hash": "4fb23f02549038e124ac82f5a985013bfe0614b62502892b93f5354c7395faf0",
  "private": false,
  "record": {
    "abstract": "Ultracold and very cold neutrons (UCN and VCN) interact strongly with\nnanoparticles due to the similarity of their wavelengths and nanoparticles\nsizes. We analyze the hypothesis that this interaction can provide efficient\ncooling of neutrons by ultracold nanoparticles at certain experimental\nconditions, thus increasing the density of UCN by many orders of magnitude. The\npresent analytical and numerical description of the problem is limited to the\nmodel of independent nanoparticles at zero temperature. Constraints of\napplication of this model are discussed.",
    "arxiv_id": "nucl-th/0510021",
    "authors": [
      "V. V. Nesvizhevsky",
      "G. Pignol",
      "K. V. Protasov"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/S0219581X07005073",
    "journal_ref": "International Journal of Nanoscience 6 (2007) 485",
    "title": "Nanoparticles as a possible moderator for an ultracold neutron source",
    "url": "https://arxiv.org/abs/nucl-th/0510021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "02666b7f-835f-405c-90d2-b70d0b89ea96",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}