{
  "annotation_id": "7b52f392-f87d-4902-9bdd-eb7986cf56cc",
  "date_created": "2026-03-02T18:00:28.034000Z",
  "date_modified": "2026-03-02T18:00:28.034000Z",
  "file_hash": "d0b3859013758d871963e3adc10239447298fa42c33de6ffcc86ffecd63ff9de",
  "private": false,
  "record": {
    "abstract": "In this paper we have studied the two-pion exchange three-nucleon potential\n$(2\\pi E-3NP)$ using an approximate $SU(2) \\times SU(2)$ chiral symmetry of the\nstrong interaction. The off-shell pion-nucleon scattering amplitudes obtained\nfrom the Weinberg Lagangian are supplemented with contributions from the\nwell-known $\\sigma$-term and the $\\Delta(1232)$ exchange. It is the role of the\n$\\Delta$-resonance in $2\\pi E-3NP$, which we have investigated in detail in the\nframework of the Lagrangian field theory. The $\\Delta$-contribution is quite\nappreciable and, more significantly, it is dependent on a parameter Z which is\narbitrary but has the empirical bounds $|Z| \\leq 1/2$. We find that the\n$\\Delta$-contribution to the important parameters of the $2\\pi E-3NP$ depends\non the choice of a value for Z, although the correction to the binding energy\nof triton is not expected to be very sensitive to the variation of Z within its\nbounds.",
    "arxiv_id": "nucl-th/9910043",
    "authors": [
      "K. Kabir",
      "T. K. Dutta",
      "Muslema Pervin",
      "L. M. Nath"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/S021830130000009X",
    "journal_ref": "Int.J.Mod.Phys.E9:157-168,2000",
    "title": "The Role of $\\Delta(1232)$ in Two-pion Exchange Three-nucleon Potential",
    "url": "https://arxiv.org/abs/nucl-th/9910043"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "54046d55-d787-449f-b1b4-556a08a01f16",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}