dorsal/arxiv
View SchemaDipole states in stable and unstable nuclei
| Authors | D. Sarchi, P. F. Bortignon, G. Colo` |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0406076 |
| URL | https://arxiv.org/abs/nucl-th/0406076 |
| DOI | 10.1016/j.physletb.2004.09.019 |
Abstract
A nuclear structure model based on linear response theory (i.e., Random Phase Approximation) and which includes pairing correlations and anharmonicities (coupling with collective vibrations), has been implemented in such a way that it can be applied on the same footing to magic as well as open-shell nuclei. As applications, we have chosen to study the dipole excitations both in well-known, stable isotopes like $^{208}$Pb and $^{120}$Sn as well as in the neutron-rich, unstable $^{132}$Sn nucleus, by addressing in the latter case the question about the nature of the low-lying strength. Our results suggest that the model is reliable and predicts in all cases low-lying strength of non collective nature.
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"abstract": "A nuclear structure model based on linear response theory (i.e., Random Phase\nApproximation) and which includes pairing correlations and anharmonicities\n(coupling with collective vibrations), has been implemented in such a way that\nit can be applied on the same footing to magic as well as open-shell nuclei. As\napplications, we have chosen to study the dipole excitations both in\nwell-known, stable isotopes like $^{208}$Pb and $^{120}$Sn as well as in the\nneutron-rich, unstable $^{132}$Sn nucleus, by addressing in the latter case the\nquestion about the nature of the low-lying strength. Our results suggest that\nthe model is reliable and predicts in all cases low-lying strength of non\ncollective nature.",
"arxiv_id": "nucl-th/0406076",
"authors": [
"D. Sarchi",
"P. F. Bortignon",
"G. Colo`"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/j.physletb.2004.09.019",
"title": "Dipole states in stable and unstable nuclei",
"url": "https://arxiv.org/abs/nucl-th/0406076"
},
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"type": "Model",
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