dorsal/arxiv
View SchemaGiant neutron halos in the non-relativistic mean field approach
| Authors | M. Grasso, S. Yoshida, N. Sandulescu, N. Van Giai |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0603060 |
| URL | https://arxiv.org/abs/nucl-th/0603060 |
| DOI | 10.1103/PhysRevC.74.064317 |
| Journal | Phys.Rev.C74:064317,2006 |
Abstract
Giant neutron halos in medium-heavy nuclei are studied in the framework of the Hartree-Fock-Bogoliubov (HFB) approach with Skyrme interactions. The appearance of such structures depends sensitively on the effective interaction adopted. This is illustrated by comparing the predictions of SLy4 and SkI4 in the Ca and Zr isotopic chains. The former force gives no halo effect, the latter predicts a neutron halo in the Zr chain with A>122 due to the weakly bound orbitals 3p1/2 and 3p3/2. The structure of the halo is analyzed in terms of the occupation probabilities of these orbitals and their partial contributions to the neutron density. The anti-halo effect in Ni and Zr isotopes is also discussed by comparing the occupation probabilities of Hartree-Fock neutron single-particle states near the Fermi energy with the corresponding HFB quasiparticle states.
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"abstract": "Giant neutron halos in medium-heavy nuclei are studied in the framework of\nthe Hartree-Fock-Bogoliubov (HFB) approach with Skyrme interactions. The\nappearance of such structures depends sensitively on the effective interaction\nadopted. This is illustrated by comparing the predictions of SLy4 and SkI4 in\nthe Ca and Zr isotopic chains. The former force gives no halo effect, the\nlatter predicts a neutron halo in the Zr chain with A\u003e122 due to the weakly\nbound orbitals 3p1/2 and 3p3/2. The structure of the halo is analyzed in terms\nof the occupation probabilities of these orbitals and their partial\ncontributions to the neutron density. The anti-halo effect in Ni and Zr\nisotopes is also discussed by comparing the occupation probabilities of\nHartree-Fock neutron single-particle states near the Fermi energy with the\ncorresponding HFB quasiparticle states.",
"arxiv_id": "nucl-th/0603060",
"authors": [
"M. Grasso",
"S. Yoshida",
"N. Sandulescu",
"N. Van Giai"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.74.064317",
"journal_ref": "Phys.Rev.C74:064317,2006",
"title": "Giant neutron halos in the non-relativistic mean field approach",
"url": "https://arxiv.org/abs/nucl-th/0603060"
},
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