{
  "annotation_id": "123b3d41-b7ab-4841-8735-d981103150d3",
  "date_created": "2026-03-02T18:00:15.362000Z",
  "date_modified": "2026-03-02T18:00:15.362000Z",
  "file_hash": "a2ef96cd07bcaf8fe752ad1fc0d8d72f307523a9c87290c722f6cff4c8e22b83",
  "private": false,
  "record": {
    "abstract": "An interaction $-\\chi Q\\cdot Q(1+B\\vec{\\tau}(1)\\cdot \\vec{\\tau}(2))$ is used\nin a shell model calculation for $^{10}Be$. Whereas for $B=0$ the $2_1^+$ state\nis two-fold degenerate, introducing a negative $B$ causes an `isovector\u0027 $2^+$\nstate to come down to zero energy at $B=-0.67$ and an $S=1~L=1$ triplet\n($J=0^+,~1^+,~2^+$) to come down to zero energy at $B=-0.73$. These are\nundesirable properties, but a large negative $B$ is apparently needed to fit\nthe energy of the isovector giant quadrupole resonance.",
    "arxiv_id": "nucl-th/9506019",
    "authors": [
      "M. S. Fayache",
      "S. Shelly Sharma",
      "L. Zamick"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/0370-2693(95)00899-V",
    "title": "The Isovector Quadrupole-Quadrupole Interaction Used in Shell Model   Calculations",
    "url": "https://arxiv.org/abs/nucl-th/9506019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "498bd465-6d40-4489-99b0-9656393e80cd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}