{
  "annotation_id": "730fab0a-4ef3-4357-985e-6c8c84e37089",
  "date_created": "2026-03-02T18:01:25.082000Z",
  "date_modified": "2026-03-02T18:01:25.082000Z",
  "file_hash": "f1ed4e6a76fbbe14737bbb18b69374faf56cf0e3a442027250ad7238c314548a",
  "private": false,
  "record": {
    "abstract": "A new relativistic method for calculation of positron binding to atoms is\npresented. The method combines a configuration interaction treatment of the\nvalence electron and the positron with a many-body perturbation theory\ndescription of their interaction with the atomic core. We apply this method to\npositron binding by the copper atom and obtain the binding energy of 170 meV (+\n- 10%). To check the accuracy of the method we use a similar approach to\ncalculate the negative copper ion. The calculated electron affinity is 1.218\neV, in good agreement with the experimental value of 1.236 eV. The problem of\nconvergence of positron-atom bound state calculations is investigated, and\nmeans to improve it are discussed. The relativistic character of the method and\nits satisfactory convergence make it a suitable tool for heavier atoms.",
    "arxiv_id": "physics/9906049",
    "authors": [
      "V. A. Dzuba",
      "V. V. Flambaum",
      "G. F. Gribakin",
      "C. Harabati"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.60.3641",
    "title": "Calculation of the positron bound state with the copper atom",
    "url": "https://arxiv.org/abs/physics/9906049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3dbb1991-836a-48b2-95a3-15eb9a6b3263",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}