Reexamination of the N = 50 and Z = 28 shell closure
Recent experiments performed in neutron-rich copper isotopes have revealed a crossing in the nucleus Cu75 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...
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ftuamadrid:oai:repositorio.uam.es:10486/705415 2023-07-02T03:33:39+02:00 Reexamination of the N = 50 and Z = 28 shell closure Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo Martín, Luis Miguel UAM. Departamento de Física Teórica 2022-11-29T13:11:00Z application/pdf http://hdl.handle.net/10486/705415 https://doi.org/10.1103/PhysRevC.104.L011302 eng eng American Physical Society Physical Review C: Nuclear Physics https://doi.org/10.1103/PhysRevC.104.L011302 Gobierno de España. FIS2017-87534-P Gobierno de España. CEX2019-000918- M Gobierno de España. PGC2018-094583-B-I00 Gobierno de España. PID2019-104888GB-I00 Physical Review C 104.1 (2021): L011302 2469-9985 (print) 2469-9993 (online) http://hdl.handle.net/10486/705415 doi:10.1103/PhysRevC.104.L011302 L011302-1 1 L011302--6 104 © 2021 American Physical Society openAccess Bogoliubov Theory Nuclear Properties Isotopes Física article info:eu-repo/semantics/publishedVersion 2022 ftuamadrid https://doi.org/10.1103/PhysRevC.104.L011302 2023-06-13T23:14:15Z Recent experiments performed in neutron-rich copper isotopes have revealed a crossing in the nucleus Cu75 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 2p3/2 and 1 f5/2 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 appears to be unable to modify the mean-field enough to reproduce this level crossing. Finally, in the calculations performed with the so-called simple effective interaction (SEI), it is shown that the experimental data in nickel and copper isotopes considered in this work can be explained satisfactorily without any explicit consideration of the tensor interaction Article in Journal/Newspaper sami Universidad Autónoma de Madrid (UAM): Biblos-e Archivo Physical Review C 104 1 |
institution |
Open Polar |
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Universidad Autónoma de Madrid (UAM): Biblos-e Archivo |
op_collection_id |
ftuamadrid |
language |
English |
topic |
Bogoliubov Theory Nuclear Properties Isotopes Física |
spellingShingle |
Bogoliubov Theory Nuclear Properties Isotopes Física Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo Martín, Luis Miguel Reexamination of the N = 50 and Z = 28 shell closure |
topic_facet |
Bogoliubov Theory Nuclear Properties Isotopes Física |
description |
Recent experiments performed in neutron-rich copper isotopes have revealed a crossing in the nucleus Cu75 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 2p3/2 and 1 f5/2 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 appears to be unable to modify the mean-field enough to reproduce this level crossing. Finally, in the calculations performed with the so-called simple effective interaction (SEI), it is shown that the experimental data in nickel and copper isotopes considered in this work can be explained satisfactorily without any explicit consideration of the tensor interaction |
author2 |
UAM. Departamento de Física Teórica |
format |
Article in Journal/Newspaper |
author |
Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo Martín, Luis Miguel |
author_facet |
Routray, T. R. Bano, P. Anguiano, M. Centelles, M. Viñas, X. Robledo Martín, Luis Miguel |
author_sort |
Routray, T. R. |
title |
Reexamination of the N = 50 and Z = 28 shell closure |
title_short |
Reexamination of the N = 50 and Z = 28 shell closure |
title_full |
Reexamination of the N = 50 and Z = 28 shell closure |
title_fullStr |
Reexamination of the N = 50 and Z = 28 shell closure |
title_full_unstemmed |
Reexamination of the N = 50 and Z = 28 shell closure |
title_sort |
reexamination of the n = 50 and z = 28 shell closure |
publisher |
American Physical Society |
publishDate |
2022 |
url |
http://hdl.handle.net/10486/705415 https://doi.org/10.1103/PhysRevC.104.L011302 |
genre |
sami |
genre_facet |
sami |
op_relation |
Physical Review C: Nuclear Physics https://doi.org/10.1103/PhysRevC.104.L011302 Gobierno de España. FIS2017-87534-P Gobierno de España. CEX2019-000918- M Gobierno de España. PGC2018-094583-B-I00 Gobierno de España. PID2019-104888GB-I00 Physical Review C 104.1 (2021): L011302 2469-9985 (print) 2469-9993 (online) http://hdl.handle.net/10486/705415 doi:10.1103/PhysRevC.104.L011302 L011302-1 1 L011302--6 104 |
op_rights |
© 2021 American Physical Society openAccess |
op_doi |
https://doi.org/10.1103/PhysRevC.104.L011302 |
container_title |
Physical Review C |
container_volume |
104 |
container_issue |
1 |
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1770273693543432192 |