{
  "annotation_id": "3528e217-6d2a-4be6-98b9-10b034d5048c",
  "date_created": "2026-03-02T18:00:18.972000Z",
  "date_modified": "2026-03-02T18:00:18.972000Z",
  "file_hash": "1ee0472936276909262f3555744c2aaa40125fb0c33eca854dd9cb68091d6469",
  "private": false,
  "record": {
    "abstract": "The two-body t-matrix is calculated directly as function of two vector\nmomenta for different Malfliet-Tjon type potentials. At a few hundred MeV\nprojectile energy the total amplitude is quite a smooth function showing only a\nstrong peak in forward direction. In contrast the corresponding partial wave\ncontributions, whose number increases with increasing energy, become more and\nmore oscillatory with increasing energy. The angular and momentum dependence of\nthe full amplitude is studied and displayed on as well as off the energy shell\nas function of positive and negative energies. The behavior of the t-matrix in\nthe vicinity of bound state poles and resonance poles in the second energy\nsheet is studied. It is found that the angular dependence of T exhibits a very\ncharacteristic behavior in the vicinity of those poles, which is given by the\nLegendre function corresponding to the quantum number either of the bound state\nor the resonance (or virtual) state. This behavior is illustrated with\nnumerical examples.",
    "arxiv_id": "nucl-th/9708017",
    "authors": [
      "Ch. Elster",
      "J. H. Thomas",
      "W. Gloeckle"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1007/s006010050076",
    "journal_ref": "Few Body Syst. 24 (1998) 55-79",
    "title": "Two-Body T-Matrices without Angular Momentum Decomposition: Energy and   Momentum Dependencies",
    "url": "https://arxiv.org/abs/nucl-th/9708017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "77f26d6e-c232-48ba-9c21-7cb5d9e996e2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}