The N=50 and Z=28 shell closure revisited ...
Recent experiments performed in neutron-rich copper isotopes have revealed a crossing in the nucleus $^{75}$Cu between the $3/2^-$ and $5/2^-$ levels, which correspond to the ground-state and the first excited state in isotopes with mass number below $A =75$. Due to the strong single-particle charac...
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ftdatacite:10.48550/arxiv.2105.15006 2023-10-01T03:59:16+02:00 The N=50 and Z=28 shell closure revisited ... Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo, L. M. 2021 https://dx.doi.org/10.48550/arxiv.2105.15006 https://arxiv.org/abs/2105.15006 unknown arXiv https://dx.doi.org/10.1103/physrevc.104.l011302 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Nuclear Theory nucl-th FOS Physical sciences ScholarlyArticle Article article-journal Text 2021 ftdatacite https://doi.org/10.48550/arxiv.2105.1500610.1103/physrevc.104.l011302 2023-09-04T12:48:59Z Recent experiments performed in neutron-rich copper isotopes have revealed a crossing in the nucleus $^{75}$Cu between the $3/2^-$ and $5/2^-$ levels, which correspond to the ground-state and the first excited state in isotopes with mass number below $A =75$. Due to the strong single-particle character of these states, this scenario can be investigated through the analysis of the proton spectrum provided by mean-field models in nickel isotopes with neutron numbers between $N$=40 and $N$=50. In this work we show that the aforementioned crossing is mainly driven by the mean-field provided by the effective nucleon-nucleon and spin-orbit interactions. We also analyze the impact of the tensor interaction, and find that in some mean-field models it is essential to reproduce the crossing of the 2$p_{3/2}$ and 1$f_{5/2}$ proton single-particle levels, as in the case of the SAMi-T Skyrme force and the D1M Gogny interaction, whereas in other cases, as for example the SLy5 Skyrme force, a reasonable tensor force ... : 7 pages, 3 figures, 1 table ... Text sami DataCite Metadata Store (German National Library of Science and Technology) |
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Nuclear Theory nucl-th FOS Physical sciences |
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Nuclear Theory nucl-th FOS Physical sciences Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo, L. M. The N=50 and Z=28 shell closure revisited ... |
topic_facet |
Nuclear Theory nucl-th FOS Physical sciences |
description |
Recent experiments performed in neutron-rich copper isotopes have revealed a crossing in the nucleus $^{75}$Cu between the $3/2^-$ and $5/2^-$ levels, which correspond to the ground-state and the first excited state in isotopes with mass number below $A =75$. Due to the strong single-particle character of these states, this scenario can be investigated through the analysis of the proton spectrum provided by mean-field models in nickel isotopes with neutron numbers between $N$=40 and $N$=50. In this work we show that the aforementioned crossing is mainly driven by the mean-field provided by the effective nucleon-nucleon and spin-orbit interactions. We also analyze the impact of the tensor interaction, and find that in some mean-field models it is essential to reproduce the crossing of the 2$p_{3/2}$ and 1$f_{5/2}$ proton single-particle levels, as in the case of the SAMi-T Skyrme force and the D1M Gogny interaction, whereas in other cases, as for example the SLy5 Skyrme force, a reasonable tensor force ... : 7 pages, 3 figures, 1 table ... |
format |
Text |
author |
Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo, L. M. |
author_facet |
Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo, L. M. |
author_sort |
Routray, T. R. |
title |
The N=50 and Z=28 shell closure revisited ... |
title_short |
The N=50 and Z=28 shell closure revisited ... |
title_full |
The N=50 and Z=28 shell closure revisited ... |
title_fullStr |
The N=50 and Z=28 shell closure revisited ... |
title_full_unstemmed |
The N=50 and Z=28 shell closure revisited ... |
title_sort |
n=50 and z=28 shell closure revisited ... |
publisher |
arXiv |
publishDate |
2021 |
url |
https://dx.doi.org/10.48550/arxiv.2105.15006 https://arxiv.org/abs/2105.15006 |
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sami |
genre_facet |
sami |
op_relation |
https://dx.doi.org/10.1103/physrevc.104.l011302 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2105.1500610.1103/physrevc.104.l011302 |
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1778533017103368192 |