{
  "annotation_id": "38d06bf1-546d-42cf-a5de-a08f30d3625e",
  "date_created": "2026-03-02T18:01:14.476000Z",
  "date_modified": "2026-03-02T18:01:14.476000Z",
  "file_hash": "5570d97e6a9c419e7338691273292037c374f26557ca95e60268789ff53763ad",
  "private": false,
  "record": {
    "abstract": "The Configuration Interaction method is used to demonstrate that there is an\nelectronically stable state of positronic calcium with an orbital angular\nmomentum of L=1. This prediction relies on the use of an asymptotic series to\nestimate the variational limit of the energy. The best estimate of the binding\nenergy is 37 meV. A discussion of the structure of the system is also\npresented.",
    "arxiv_id": "physics/0610045",
    "authors": [
      "M. W. J. Bromley",
      "J. Mitroy"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.chem-ph"
    ],
    "doi": "10.1103/PhysRevLett.97.183402",
    "journal_ref": "Phys.Rev.Lett. 97, 183402 (2006)",
    "title": "The existence of a 2Po excited state for the e+Ca system",
    "url": "https://arxiv.org/abs/physics/0610045"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b5eb7e3b-0a49-4019-9290-9dbe85979dc0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}