dorsal/arxiv
View SchemaDeformation of Nuclei Close to the Two-Neutron Drip Line in Mg Region
| Authors | J. Terasaki, H. Flocard, P. -H. Heenen, P. Bonche |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9612058 |
| URL | https://arxiv.org/abs/nucl-th/9612058 |
| DOI | 10.1016/S0375-9474(97)00183-8 |
Abstract
We perform the Hartree-Fock-Bogoliubov (HFB) calculations for ground states of even Mg isotopes using the Skyrme force and a density-dependent zero-range pairing force. The HFB equation is solved in a three-dimensional cartesian mesh, and a convergence of deformation is carefully examined with respect to a cut-off radius for a check of the calculations. We discuss systematics of the two-neutron separation energy, deformation and root-mean-square radius. We have found that 36,38,40Mg have appreciable static deformation, where 40Mg is a two-neutron drip-line nucleus in our calculation, and the deformations of the neutron and proton are different in these three nuclei. The deformation property is analyzed on the basis of the single-particle diagram. It is shown that N=28 is not a closed shell in Mg as well as Si.
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"abstract": "We perform the Hartree-Fock-Bogoliubov (HFB) calculations for ground states\nof even Mg isotopes using the Skyrme force and a density-dependent zero-range\npairing force. The HFB equation is solved in a three-dimensional cartesian\nmesh, and a convergence of deformation is carefully examined with respect to a\ncut-off radius for a check of the calculations. We discuss systematics of the\ntwo-neutron separation energy, deformation and root-mean-square radius. We have\nfound that 36,38,40Mg have appreciable static deformation, where 40Mg is a\ntwo-neutron drip-line nucleus in our calculation, and the deformations of the\nneutron and proton are different in these three nuclei. The deformation\nproperty is analyzed on the basis of the single-particle diagram. It is shown\nthat N=28 is not a closed shell in Mg as well as Si.",
"arxiv_id": "nucl-th/9612058",
"authors": [
"J. Terasaki",
"H. Flocard",
"P. -H. Heenen",
"P. Bonche"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(97)00183-8",
"title": "Deformation of Nuclei Close to the Two-Neutron Drip Line in Mg Region",
"url": "https://arxiv.org/abs/nucl-th/9612058"
},
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