{
  "annotation_id": "b5d585de-1477-4188-9187-8e6458b46d82",
  "date_created": "2026-03-02T18:00:22.422000Z",
  "date_modified": "2026-03-02T18:00:22.422000Z",
  "file_hash": "236c147dfb91e723ad640eabf6e0c898bddb092d73f891b827266acd88d8327d",
  "private": false,
  "record": {
    "abstract": "The polarization degrees of freedom in photoinduced two-nucleon knockout from\nfinite nuclei are studied. It is pointed out that they open good perspectives\nto study the dynamics of dinucleons in the medium in detail. The ($\\gamma,pp$)\nand ($\\gamma,pn$) angular cross sections, photon asymmetries and outgoing\nnucleon polarizations are calculated for the target nuclei $^{16}$O and\n$^{12}$C and photonenergies ranging from 100 up to 500 MeV. It is investigated\nto which degree the two-nucleon emission reaction is dominated by\nphotoabsorption on $^3S_1(T=0)$ proton-neutron and $^1S_0(T=1)$ proton-proton\npairs in the nuclear medium. The calculations demonstrate that dominance of $S$\nwave photoabsorption in the ($\\gamma,pn$) channel does not necessarily imply\nthat the reaction mechanism is similar to what is observed in deuteron\nphotodisintegration.",
    "arxiv_id": "nucl-th/9710003",
    "authors": [
      "Jan Ryckebusch",
      "Dimitri Debruyne",
      "Wim Van Nespen"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.57.1319",
    "journal_ref": "Phys.Rev.C57:1319-1336,1998",
    "title": "Polarization degrees of freedom in photoinduced two-nucleon knockout   from finite nuclei",
    "url": "https://arxiv.org/abs/nucl-th/9710003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "52be1fdd-64dc-419a-8e3c-5b047e864905",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}