{
  "annotation_id": "920e0a78-d99c-4999-9d2d-5e23d234cab2",
  "date_created": "2026-02-17T05:53:08.707000Z",
  "date_modified": "2026-02-17T05:53:08.707000Z",
  "file_hash": "5acb34311144c6cee03a17dad33910b4f7778d70602cf76f3da9bfa6132ce2a3",
  "private": false,
  "record": {
    "abstract": "In the context of the ongoing PUMA experiment (CERN), which investigates antiproton annihilation on atomic nuclei, we study the energy shifts and widths of Rydberg states in the $\\bar{p}+\\rm{^3H}$ and $\\bar{p}+\\rm{^3He}$ systems by performing ab initio calculations. The scattering lengths and scattering volumes are first determined by solving the Faddeev-Yakubovsky equations in configuration space. The level shifts and widths of the corresponding $\\bar{p} \\, \\rm{^3H}$ and $\\bar{p} \\, \\rm{^3He}$ hydrogen-like states are then obtained using the Trueman formula. A pronounced model dependence associated with the nucleon-antinucleon interaction is observed for certain states. Finally, annihilation densities are computed from the four-body wavefunctions. Comparison with the nuclear density distributions indicates that the nucleon-antinucleon annihilation is predominantly peripheral.",
    "arxiv_id": "2601.06541",
    "authors": [
      "Pierre-Yves Duerinck",
      "Rimantas Lazauskas"
    ],
    "categories": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Ab initio description of $\\bar{p}+\\rm{^3H}$ and $\\bar{p}+\\rm{^3He}$ systems in optical models",
    "url": "https://arxiv.org/abs/2601.06541",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9e46a6b5-bddc-4cdb-b168-85553afe4bfa",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}