{
  "annotation_id": "c3e4d752-a367-4e6f-be36-7f2dc9739c40",
  "date_created": "2026-03-02T18:00:08.361000Z",
  "date_modified": "2026-03-02T18:00:08.361000Z",
  "file_hash": "de9f617be47efbbddf9e49ae5eb87450d0772094be94038dcc2483d7a53e4834",
  "private": false,
  "record": {
    "abstract": "The isotopic dependence of the isovector Pygmy dipole response in tin is\nstudied within the framework of the relativistic random phase approximation.\nRegarded as an oscillation of the neutron skin against the isospin-symmetric\ncore, the pygmy dipole resonance may place important constraints on the neutron\nskin of heavy nuclei and, as a result, on the equation of state of neutron-rich\nmatter. The present study centers around two questions. First, is there a\nstrong correlation between the development of a neutron skin and the emergence\nof low-energy isovector dipole strength? Second, could one use the recently\nmeasured Pygmy dipole resonance in 130Sn and 132Sn to discriminate among\ntheoretical models? For the first question we found that while a strong\ncorrelation between the neutron skin and the Pygmy dipole resonance exists, a\nmild anti-correlation develops beyond 120Sn. The answer to the second question\nsuggests that models with overly large neutron skins--and thus stiff symmetry\nenergies--are in conflict with experiment.",
    "arxiv_id": "nucl-th/0602036",
    "authors": [
      "J. Piekarewicz"
    ],
    "categories": [
      "nucl-th",
      "nucl-ex"
    ],
    "doi": "10.1103/PhysRevC.73.044325",
    "journal_ref": "Phys.Rev. C73 (2006) 044325",
    "title": "Pygmy dipole resonance as a constraint on the neutron skin of heavy   nuclei",
    "url": "https://arxiv.org/abs/nucl-th/0602036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "31e845f5-f0a0-484d-b578-f641992a76d7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}