dorsal/arxiv
View SchemaExcited-State Density Distributions of Neutron-Rich Unstable Nuclei
| Authors | J. Terasaki, J. Engel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0608007 |
| URL | https://arxiv.org/abs/nucl-th/0608007 |
| DOI | 10.1103/PhysRevC.76.044320 |
| Journal | Phys.Rev.C76:044320,2007 |
Abstract
We calculate densities of excited states in the quasiparticle random-phase approximation (QRPA)with Skyrme interactions and volume pairing. We focus on low-energy peaks/bumps in the strength functions of a range of Ca, Ni, and Sn isotopes for J pi = 0+, 1-, and 2+. We define an "emitted-neutron number", which we then use to distinguish localized states from scattering-like states. The degree of delocalization either increases as the neutron-drip line is approached or stays high between the stability line and the drip line. In the 2+ channel of Sn, however, the low-lying states, not even counting surface vibrations, are still fairly well localized on average, even at the neutron drip line.
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"abstract": "We calculate densities of excited states in the quasiparticle random-phase\napproximation (QRPA)with Skyrme interactions and volume pairing. We focus on\nlow-energy peaks/bumps in the strength functions of a range of Ca, Ni, and Sn\nisotopes for J pi = 0+, 1-, and 2+. We define an \"emitted-neutron number\",\nwhich we then use to distinguish localized states from scattering-like states.\nThe degree of delocalization either increases as the neutron-drip line is\napproached or stays high between the stability line and the drip line. In the\n2+ channel of Sn, however, the low-lying states, not even counting surface\nvibrations, are still fairly well localized on average, even at the neutron\ndrip line.",
"arxiv_id": "nucl-th/0608007",
"authors": [
"J. Terasaki",
"J. Engel"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.76.044320",
"journal_ref": "Phys.Rev.C76:044320,2007",
"title": "Excited-State Density Distributions of Neutron-Rich Unstable Nuclei",
"url": "https://arxiv.org/abs/nucl-th/0608007"
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