{
  "annotation_id": "1c4c9b6a-ec84-4d41-a4eb-051049698513",
  "date_created": "2026-03-02T18:00:08.369000Z",
  "date_modified": "2026-03-02T18:00:08.369000Z",
  "file_hash": "9264a193b063daf8960033bc3b151e7f843627fa1188a453c3259d4790480d8a",
  "private": false,
  "record": {
    "abstract": "Superheavy isotopes are highly neutron rich nuclei in the vicinity of neutron\ndrip-line, stabilized by shell effect against the instability due to repulsive\ncomponent of nuclear force, analogous to superheavy elements similarly\nstabilized against Coulomb instability. Here we discuss the stability and\nfission decay properties of such nuclei in the $^{254}$Th region and show that\nthey are stable against $\\alpha$ and fission decay and have $\\beta$-decay life\ntime of several tens of seconds. In particular, the $^{254}$Th nucleus has a\nlow fission barrier and unusally large barrier width. This makes it an ideal\nthermally fissile nucleus, if formed by means of a thermal neutron, like other\nknown nuclei such as $^{233}$U, $^{235}$U, $^{239}$Pu in this actinide region.\nIt shows a new mode of fast fission decay, which may be termed as\nmultifragmentation fission, in which in addition to two heavy fragments large\nnumber of scission neutrons are simultaneously produced. Its likely synthesis\nduring the r-process nucleosynthesis will have important bearing on steller\nevolution, and here in the laboratory, it has great potential in energy\nproduction.",
    "arxiv_id": "nucl-th/0604027",
    "authors": [
      "L. Satpathy",
      "S. K. Patra",
      "R. K. Choudhury"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "New features in the stability and fission decay of superheavy Thorium   isotopes",
    "url": "https://arxiv.org/abs/nucl-th/0604027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6a21c713-424d-44a2-aae7-ad1cf3661e81",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}