High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40

High-precision mass measurements of more than thirty neutron-rich nuclides around the Z=28 closed proton shell were performed with the triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN to address the question of a possible neutron shell closure at N=40. The results, for 57,60,64-69Ni (Z=28), 65-...

Descripción completa

Detalles Bibliográficos
Autores principales: Guenaut, C., Audi, G., Beck, D., Blaum, K., Bollen, G., Delahaye, P., Herfurth, F., Kellerbauer, A., Kluge, H.J., Libert, J., Lunney, D., Schwarz, S., Schweikhard, L., Yazidjian, C.
Lenguaje:eng
Publicado: 2007
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevC.75.044303
http://cds.cern.ch/record/1012454
_version_ 1780911902582374400
author Guenaut, C.
Audi, G.
Beck, D.
Blaum, K.
Bollen, G.
Delahaye, P.
Herfurth, F.
Kellerbauer, A.
Kluge, H.J.
Libert, J.
Lunney, D.
Schwarz, S.
Schweikhard, L.
Yazidjian, C.
author_facet Guenaut, C.
Audi, G.
Beck, D.
Blaum, K.
Bollen, G.
Delahaye, P.
Herfurth, F.
Kellerbauer, A.
Kluge, H.J.
Libert, J.
Lunney, D.
Schwarz, S.
Schweikhard, L.
Yazidjian, C.
author_sort Guenaut, C.
collection CERN
description High-precision mass measurements of more than thirty neutron-rich nuclides around the Z=28 closed proton shell were performed with the triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN to address the question of a possible neutron shell closure at N=40. The results, for 57,60,64-69Ni (Z=28), 65-74,76Cu (Z=29), and 63-65,68-78Ga (Z=31), have a relative uncertainty of the order of 10^8. In particular, the masses of 72-74,76Cu have been measured for the first time. We analyse the resulting mass surface for signs of magicity, comparing the behavior of N=40 to that of known magic numbers and to mid-shell behavior. Contrary to nuclear spectroscopy studies, no indications of a shell or sub-shell closure are found for N=40.
id cern-1012454
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
record_format invenio
spelling cern-10124542023-03-12T04:30:38Zdoi:10.1103/PhysRevC.75.044303http://cds.cern.ch/record/1012454engGuenaut, C.Audi, G.Beck, D.Blaum, K.Bollen, G.Delahaye, P.Herfurth, F.Kellerbauer, A.Kluge, H.J.Libert, J.Lunney, D.Schwarz, S.Schweikhard, L.Yazidjian, C.High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40Nuclear Physics - ExperimentHigh-precision mass measurements of more than thirty neutron-rich nuclides around the Z=28 closed proton shell were performed with the triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN to address the question of a possible neutron shell closure at N=40. The results, for 57,60,64-69Ni (Z=28), 65-74,76Cu (Z=29), and 63-65,68-78Ga (Z=31), have a relative uncertainty of the order of 10^8. In particular, the masses of 72-74,76Cu have been measured for the first time. We analyse the resulting mass surface for signs of magicity, comparing the behavior of N=40 to that of known magic numbers and to mid-shell behavior. Contrary to nuclear spectroscopy studies, no indications of a shell or sub-shell closure are found for N=40.High-precision mass measurements of more than thirty neutron-rich nuclides around the Z=28 closed proton shell were performed with the triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN to address the question of a possible neutron shell closure at N=40. The results, for 57,60,64-69Ni (Z=28), 65-74,76Cu (Z=29), and 63-65,68-78Ga (Z=31), have a relative uncertainty of the order of 10^8. In particular, the masses of 72-74,76Cu have been measured for the first time. We analyse the resulting mass surface for signs of magicity, comparing the behavior of N=40 to that of known magic numbers and to mid-shell behavior. Contrary to nuclear spectroscopy studies, no indications of a shell or sub-shell closure are found for N=40.nucl-ex/0701029oai:cds.cern.ch:10124542007-01-22
spellingShingle Nuclear Physics - Experiment
Guenaut, C.
Audi, G.
Beck, D.
Blaum, K.
Bollen, G.
Delahaye, P.
Herfurth, F.
Kellerbauer, A.
Kluge, H.J.
Libert, J.
Lunney, D.
Schwarz, S.
Schweikhard, L.
Yazidjian, C.
High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
title High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
title_full High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
title_fullStr High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
title_full_unstemmed High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
title_short High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
title_sort high-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at n=40
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1103/PhysRevC.75.044303
http://cds.cern.ch/record/1012454
work_keys_str_mv AT guenautc highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT audig highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT beckd highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT blaumk highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT bolleng highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT delahayep highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT herfurthf highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT kellerbauera highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT klugehj highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT libertj highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT lunneyd highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT schwarzs highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT schweikhardl highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40
AT yazidjianc highprecisionmassmeasurementsofnickelcopperandgalliumisotopesandthepurportedshellclosureatn40

Ejemplares similares