{
  "annotation_id": "091e4b4f-b312-4e8b-ad2e-0d55ce1448eb",
  "date_created": "2026-03-02T18:00:08.193000Z",
  "date_modified": "2026-03-02T18:00:08.193000Z",
  "file_hash": "9d7f7042b5d9fea78815b84f8dd2f47073f542b04236387f207529e8818d7693",
  "private": false,
  "record": {
    "abstract": "The Coulomb deexcitation of $(\\pi p)$ atom in collisions with the hydrogen\natom has been studied in the fully quantum mechanical close-coupling approach\nfor the first time. The total Coulomb deexcitation cross-sections of $nl\\to\nn\u0027l\u0027$ transitions and $l$-averaged cross-sections are calculated for $n=3 - 8$\nand at the relative energies $E=0.01 - 100$ eV. The strong interaction and\nvacuum polarization shifts of $ns$-states are taken into account. It is shown\nthat the $\\Delta n \u003e 1$ transitions are very important and make up a\nsubstantial fraction of the Coulomb deexcitation cross-section (up to $\\sim\n47%$).",
    "arxiv_id": "nucl-th/0511026",
    "authors": [
      "V. N. Pomerantsev",
      "V. P. Popov"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevA.73.040501",
    "journal_ref": "Phys.Rev.A73:040501,2006",
    "title": "Coulomb deexcitation of pionic hydrogen within close-coupling method",
    "url": "https://arxiv.org/abs/nucl-th/0511026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c0266684-5ab7-4a69-9d21-8f599b9066ea",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}