{
  "annotation_id": "9d2ba150-b4dc-4d97-83e9-4f4ca2c56a15",
  "date_created": "2026-03-02T18:01:24.759000Z",
  "date_modified": "2026-03-02T18:01:24.759000Z",
  "file_hash": "db3b285e2f5ca1e80c2548411aa5adb4b0c67124ed30cc0c0f257cbb069091c1",
  "private": false,
  "record": {
    "abstract": "To determine the lifetimes of Efimov states of negative two-atomic ions, the\nproblem of resonance scattering of a light particle on a pair of identical\nparticles has been considered. An analytic expression has been obtained for\nresonance widths in the limit of forces of zero radius and low binding energies\nin pairs. Calculations are compared with the numerical solution of the Faddeev\nintegral equations in a wide region of masses of the light particle. It is\nshown that the widths of underthreshold resonances in the scattering amplitude\nobtained from the integral equations with the Yamaguchi potential are well\ndescribed by the analytic expression, which allows this expression to be used\nin the mass region inaccessible for numerical calculations. It has been\nconcluded that the lifetime of highly excited negative molecular ions with a\nbinding energy close to the threshold of disintegration is practically\nunlimited.",
    "arxiv_id": "physics/9903048",
    "authors": [
      "F. M. Pen\u0027kov"
    ],
    "categories": [
      "physics.atm-clus",
      "physics.chem-ph"
    ],
    "doi": "10.1134/1.558895",
    "title": "Underthreshold resonances in three-particle molecular systems",
    "url": "https://arxiv.org/abs/physics/9903048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c65760c7-4e77-4013-ac6f-b1ff96774633",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}