{
  "annotation_id": "a7b0472d-2e95-4233-b778-2ab54d628b45",
  "date_created": "2026-03-02T18:00:08.435000Z",
  "date_modified": "2026-03-02T18:00:08.435000Z",
  "file_hash": "939383ffe0151faccd4aa5944b78df603a759669df244d22be1875ae978a58a1",
  "private": false,
  "record": {
    "abstract": "The evolution of nuclear shell structure is investigated for the first time\nwithin density-dependent relativistic Hartree-Fock theory and the role of\n$\\pi$-exchange potential is studied in detail. The energy differences between\nthe neutron orbits $\\Lrb{\\nu1h_{9/2},\\nu 1i_{13/2}}$ in the N=82 isotones and\nbetween the proton ones $\\Lrb{\\pi1g_{7/2},\\pi1h_{11/2}}$ in the Z=50 isotopes\nare extracted as a function of neutron excess $N-Z$. A kink around $Z = 58$ for\nthe N=82 isotones is found as an effect resulting from pion correlations. It is\nshown that the inclusion of $\\pi$-coupling plays a central role to provide\nrealistic isospin dependence of the energy differences. In particular, the\ntensor part of the $\\pi$-coupling has an important effect on the characteristic\nisospin dependence observed in recent experiments.",
    "arxiv_id": "nucl-th/0609076",
    "authors": [
      "Wen Hui Long",
      "Hiroyuki Sagawa",
      "Jie Meng",
      "Nguyen Van Giai"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1209/0295-5075/82/12001",
    "journal_ref": "Europhys.Lett.82:12001,2008",
    "title": "Evolution of Nuclear Shell Structure due to the Pion Exchange Potential",
    "url": "https://arxiv.org/abs/nucl-th/0609076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8d4a4984-eb67-4a02-8d49-4ac76bb97d56",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}