{
  "annotation_id": "0f3e9c81-89d2-461d-afe6-af4d64a27663",
  "date_created": "2026-02-17T05:53:16.196000Z",
  "date_modified": "2026-02-17T05:53:16.196000Z",
  "file_hash": "fcbe589fa3d30e2e522d652b2b51496afe41cf13d6ed3bc72492fe6cebc2a6ce",
  "private": false,
  "record": {
    "abstract": "The quasiparticle finite amplitude method based on the deformed relativistic Hartree-Bogoliubov theory in continuum has been developed for the noncharge-exchange multipole response. Taking neutron-rich magnesium isotopes as examples, the isovector electric dipole response, especially in the low-lying region, is studied. It is found that the low-energy dipole strength increases with neutron number and becomes notably enhanced in the predicted deformed halo nuclei $^{42}\\mathrm{Mg}$ and $^{44}\\mathrm{Mg}$. In these isotopes, the $K^\\pi=1^-$ states below 3 MeV are dominated by transitions from the ``halo\" part of the single-neutron orbitals. Their transition densities reveal a low-frequency, out-of-phase oscillation between the neutron halo and the core. These results provide a microscopic picture for the soft dipole resonance in $^{42}\\mathrm{Mg}$ and $^{44}\\mathrm{Mg}$.",
    "arxiv_id": "2601.08438",
    "authors": [
      "X. F. Jiang",
      "Z. Z. Li",
      "X. W. Sun",
      "J. Meng"
    ],
    "categories": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Dipole response in deformed halo nuclei $^{42}\\mathrm{Mg}$ and $^{44}\\mathrm{Mg}$",
    "url": "https://arxiv.org/abs/2601.08438",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b628ddb5-79c7-41a4-92a9-a30f207d1376",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}