{
  "annotation_id": "dc1eea0e-ac93-47a8-b38a-26955b4fabf7",
  "date_created": "2026-03-02T18:00:11.015000Z",
  "date_modified": "2026-03-02T18:00:11.015000Z",
  "file_hash": "a9172c0c621117086602a960034a7d82a2f2af6e9668e95ddc2640d612b71ba0",
  "private": false,
  "record": {
    "abstract": "A quark model which includes both scalar and vector contributions to the\nreaction mechanism is used in a DWBA calculation of total and differential\ncross-sections, polarizations, and spin correlation coefficients for the\nreaction $\\bar p p \\rightarrow \\bar \\Lambda \\Lambda$ at laboratory momenta from\nthreshold to 1.92 GeV/c. The free parameters of the calculation include the\nscalar and vector strengths, a quark cluster size parameter, and six parameters\nin the unknown $\\bar \\Lambda \\Lambda$ interaction. Excellent agreement with\nexperiment is found for a constructive interference of scalar and vector terms,\nand for a $\\bar \\Lambda \\Lambda$ potential which differs from that suggested by\nseveral authors on the basis of SU(3) arguments. The fit to the data is better\nthan that obtained by other quark models, which use only scalar or vector\nannihilation terms. The agreement with experiment is as good as that found in\nmeson-exchange models, which use more parameters than the present calculation.",
    "arxiv_id": "nucl-th/9301007",
    "authors": [
      "M. A. Alberg",
      "E. M. Henley",
      "L. Wilets",
      "P. D. Kunz"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/0375-9474(93)90102-4",
    "journal_ref": "Nucl.Phys.A560:365-388,1993",
    "title": "A Quark Model of Antilambda-Lambda Production in Pbar-P Interactions",
    "url": "https://arxiv.org/abs/nucl-th/9301007"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "95a44ea9-c8d9-4ad5-be59-abd0467d60c0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}