{
  "annotation_id": "9f37f2e5-230f-4dbb-9c90-21c3e0570abb",
  "date_created": "2026-03-02T18:00:11.471000Z",
  "date_modified": "2026-03-02T18:00:11.471000Z",
  "file_hash": "8950ba12fa7952a5884702f7917bd6b073763404bd1d4f8acb41b7e2f302555c",
  "private": false,
  "record": {
    "abstract": "E2 properties of A=6--10 nuclei, including those of nuclei far from\nstability, are studied by a $(0+2)\\hbar\\omega$ shell-model calculation which\nincludes E2 core-polarization effects explicitly. The quadrupole moments and\nthe E2 transition strengths in A=6--10 nuclei are described quite well by the\npresent calculation. This result indicates that the relatively large value of\nthe quadrupole moment of $^8$B can be understood without introducing the\nproton-halo in $^8$B. An interesting effect of the $2\\hbar\\omega$\ncore-polarization is found for effective charges used in the $0\\hbar\\omega$\nshell model; although isoscalar effective-charges are almost constant as a\nfunction of nucleus, appreciable variations are needed for isovector\neffective-charges which play important roles in nuclei with high\nisospin-values.",
    "arxiv_id": "nucl-th/9311004",
    "authors": [
      "Hitoshi Nakada",
      "Takaharu Otsuka"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.49.886",
    "title": "E2 properties of nuclei far from stability and the proton-halo problem   of 8B",
    "url": "https://arxiv.org/abs/nucl-th/9311004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "28374ecb-82e3-432e-9fc7-1715345c91b6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}