dorsal/arxiv
View SchemaCollective excitations induced by pairing anti-halo effect
| Authors | Masayuki Yamagami |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0404030 |
| URL | https://arxiv.org/abs/nucl-th/0404030 |
| DOI | 10.1140/epjad/i2005-06-130-1 |
| Journal | Eur.Phys.J. A25 (2005) 569-570 |
Abstract
Important features of low-frequency collective vibrational excitations in neutron drip line nuclei are studied. We emphasize that pairing anti-halo effect in the Hartree-Fock-Bogoliubov (HFB) theory play crucial roles to realize collective motions in loosely bound nuclei. We study the spatial properties of one particle - one hole (1p-1h) states with/without selfconsistent pairing correlations by solving simplified HF(B) equations in coordinate space. Next, by performing Skyrme-HFB plus selfconsistent quasiparticle random phase approximation (QRPA) we investigate the first 2+ states in neutron rich Ni isotopes. Three types of calculations, HFB plus QRPA, resonant BCS plus QRPA, and RPA are compared.
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"abstract": "Important features of low-frequency collective vibrational excitations in\nneutron drip line nuclei are studied. We emphasize that pairing anti-halo\neffect in the Hartree-Fock-Bogoliubov (HFB) theory play crucial roles to\nrealize collective motions in loosely bound nuclei. We study the spatial\nproperties of one particle - one hole (1p-1h) states with/without\nselfconsistent pairing correlations by solving simplified HF(B) equations in\ncoordinate space. Next, by performing Skyrme-HFB plus selfconsistent\nquasiparticle random phase approximation (QRPA) we investigate the first 2+\nstates in neutron rich Ni isotopes. Three types of calculations, HFB plus QRPA,\nresonant BCS plus QRPA, and RPA are compared.",
"arxiv_id": "nucl-th/0404030",
"authors": [
"Masayuki Yamagami"
],
"categories": [
"nucl-th"
],
"doi": "10.1140/epjad/i2005-06-130-1",
"journal_ref": "Eur.Phys.J. A25 (2005) 569-570",
"title": "Collective excitations induced by pairing anti-halo effect",
"url": "https://arxiv.org/abs/nucl-th/0404030"
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