{
  "annotation_id": "1b1233bd-d284-4eee-97b1-bc86e7a08a52",
  "date_created": "2026-03-02T18:00:10.878000Z",
  "date_modified": "2026-03-02T18:00:10.878000Z",
  "file_hash": "136bf88c7aaf9d4f2f3e38fb6b248c91658eb68e8b726055e326191d9d40e095",
  "private": false,
  "record": {
    "abstract": "DWBA analysis of the inelastic $^{30-40}$S$(p,p\u0027)$ and $^{18-22}$O$(p,p\u0027)$\nscattering data measured in the inverse kinematics has been performed to\ndetermine the isoscalar ($\\delta_0$) and isovector ($\\delta_1$) deformation\nlengths of the 2$^+_1$ excitations in the Sulfur and Oxygen isotopes using a\ncompact folding approach. A systematic $N$-dependence of $\\delta_0$ and\n$\\delta_1$ has been established which shows a link between $\\delta_1$ and the\nneutron-shell closure. Strong isovector deformations were found in several\ncases, e.g., the 2$^+_1$ state in $^{20}$O where $\\delta_1$ is nearly three\ntimes larger than $\\delta_0$. These results confirm the relation\n$\\delta_1\u003e\\delta_0$ anticipated from the core polarization by the valence\nneutrons in the open-shell (neutron rich) nuclei. The effect of neutron shell\nclosure at N=14 or 16 has been discussed based on the folding model analysis of\nthe inelastic $^{22}$O+$p$ scattering data at 46.6 MeV/u measured recently at\nGANIL.",
    "arxiv_id": "nucl-th/0612083",
    "authors": [
      "Dao T. Khoa"
    ],
    "categories": [
      "nucl-th",
      "nucl-ex"
    ],
    "doi": "10.1140/epjst/e2007-00258-8",
    "journal_ref": "Eur.Phys.J.ST150:31-34,2007",
    "title": "Isovector deformation and its link to the neutron shell closure",
    "url": "https://arxiv.org/abs/nucl-th/0612083"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "162b585e-f4f0-4bcf-a104-e71f0704755e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}