{
  "annotation_id": "2846c900-f252-4407-8fb9-a0ccfbe99c61",
  "date_created": "2026-03-02T18:00:25.758000Z",
  "date_modified": "2026-03-02T18:00:25.758000Z",
  "file_hash": "30f27d48d5fb7aa04a1eb908af63d72573ba2bef2b2618690e07452411ce19e0",
  "private": false,
  "record": {
    "abstract": "It is shown that the new data on the excitation energy Eex spectrum of the\nresidual nuclear system in the Sigma-hypernuclear region in the reactions\n(K-,pi+-) on Be-9 and in the reaction (K-,pi+) on He-4 and C-12 can be\ndescribed without the supposition on the existence of excited\nSigma-hypernuclear states. The basis is formed by a simultaneous consideration\nof the quasi-free Sigma production and Sigma-nuclear rescattering (elastic and\nwith Sigma -\u003e Lambda conversion) with account of interference of the respective\namplitudes. For final decision of the question about the nature of the\nirregularities in Eex spectrum, it is proposed to study the picture\ncorresponding to the so-called moving complex singularity of the triangle graph\nwith Sigma rescattering: the position and the width of the peak in Eex\ndistribution must appreciably change with momentum transferred from the initial\nkaon to the final pion.",
    "arxiv_id": "nucl-th/9901040",
    "authors": [
      "O. D. Dalkarov",
      "V. M. Kolybasov"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1134/1.855649",
    "journal_ref": "Phys.Atom.Nucl. 63 (2000) 422-430; Yad.Fiz. 63 (2000) 492-500",
    "title": "On the production mechanism of Sigma-hypernuclear systems in A(K-,pi+-)   reactions",
    "url": "https://arxiv.org/abs/nucl-th/9901040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "12badd54-e8d5-48c1-8bfa-457b895a2b86",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}