{
  "annotation_id": "e0af5f0d-00bd-4bd0-b968-6e1737040f6c",
  "date_created": "2026-03-02T18:00:17.869000Z",
  "date_modified": "2026-03-02T18:00:17.869000Z",
  "file_hash": "b6912ff76faab52b9f4a73a6a613be34c28dee3d5e00609ae67181bdda702de4",
  "private": false,
  "record": {
    "abstract": "We present a new method by which wavefunctions with simple structure are\nrenormalized so as to contain more complicated structure. This method, called\n$H^n$-cooling method, is applied to the study of the quadrupole collective\nmotion of $^{56}$Fe, $^{54}$Cr, $^{58}$Fe and $^{56}$Cr. The shell-model\nwavefunctions of lowest-lying states of these nuclei are well treated by this\nmethod. By using the wavefunctions obtained via the $H^n$-cooling method, IBM-2\nparameters are derived from a realistic shell-model hamiltonian and transition\noperators. The Majorana interaction becomes sizably repulsive, primarily as an\neffect of the renormalization. The bosonic E2 effective-charges are enhanced\ndue to the renormalization, while a quenching occurs in the M1 and M3\nparameters for proton bosons. It is shown that the $\\chi$ parameters take\nsimilar values in the hamiltonian and in the E2 operator.",
    "arxiv_id": "nucl-th/9612012",
    "authors": [
      "H. Nakada",
      "T. Otsuka"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.55.748",
    "title": "Microscopic analysis of quadrupole collective motion in Cr-Fe nuclei: I.   Renormalization of collective states and interacting-boson-model parameters",
    "url": "https://arxiv.org/abs/nucl-th/9612012"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0776b64f-27a1-482c-abb6-384bf89b891d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}