Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process

Masses adjacent to the classical waiting-point nuclide 130Cd have been measured by using the Penning- trap spectrometer ISOLTRAP at ISOLDE/CERN. We find a significant deviation of over 400 keV from earlier values evaluated by using nuclear beta-decay data. The new measurements show the reduction of...

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Detalles Bibliográficos
Autores principales: Atanasov, D., Ascher, P., Blaum, K., Cakirli, R.B., Cocolios, T.E., George, S., Herfurth, F., Kisler, D., Janka, H.T., Just, O., Kowalska, M., Kreim, S., Litvinov, Yu. A., Lunney, D., Manea, V., Neidherr, D., Rosenbusch, M., Schweikhard, L., Welker, A., Wienholtz, F., Wolf, R. N., Zuber, K.
Lenguaje:eng
Publicado: 2015
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.115.232501
http://cds.cern.ch/record/2117011
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author Atanasov, D.
Ascher, P.
Blaum, K.
Cakirli, R.B.
Cocolios, T.E.
George, S.
Herfurth, F.
Kisler, D.
Janka, H.T.
Just, O.
Kowalska, M.
Kreim, S.
Kisler, D.
Litvinov, Yu. A.
Lunney, D.
Manea, V.
Neidherr, D.
Rosenbusch, M.
Schweikhard, L.
Welker, A.
Wienholtz, F.
Wolf, R. N.
Zuber, K.
author_facet Atanasov, D.
Ascher, P.
Blaum, K.
Cakirli, R.B.
Cocolios, T.E.
George, S.
Herfurth, F.
Kisler, D.
Janka, H.T.
Just, O.
Kowalska, M.
Kreim, S.
Kisler, D.
Litvinov, Yu. A.
Lunney, D.
Manea, V.
Neidherr, D.
Rosenbusch, M.
Schweikhard, L.
Welker, A.
Wienholtz, F.
Wolf, R. N.
Zuber, K.
author_sort Atanasov, D.
collection CERN
description Masses adjacent to the classical waiting-point nuclide 130Cd have been measured by using the Penning- trap spectrometer ISOLTRAP at ISOLDE/CERN. We find a significant deviation of over 400 keV from earlier values evaluated by using nuclear beta-decay data. The new measurements show the reduction of the N = 82 shell gap below the doubly magic 132Sn. The nucleosynthesis associated with the ejected wind from type-II supernovae as well as from compact object binary mergers is studied, by using state-of-the-art hydrodynamic simulations. We find a consistent and direct impact of the newly measured masses on the calculated abundances in the A = 128 - 132 region and a reduction of the uncertainties from the precision mass input data.
id cern-2117011
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-21170112021-11-20T03:06:46Zdoi:10.1103/PhysRevLett.115.232501http://cds.cern.ch/record/2117011engAtanasov, D.Ascher, P.Blaum, K.Cakirli, R.B.Cocolios, T.E.George, S.Herfurth, F.Kisler, D.Janka, H.T.Just, O.Kowalska, M.Kreim, S.Kisler, D.Litvinov, Yu. A.Lunney, D.Manea, V.Neidherr, D.Rosenbusch, M.Schweikhard, L.Welker, A.Wienholtz, F.Wolf, R. N.Zuber, K.Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture ProcessNuclear Physics - ExperimentMasses adjacent to the classical waiting-point nuclide 130Cd have been measured by using the Penning- trap spectrometer ISOLTRAP at ISOLDE/CERN. We find a significant deviation of over 400 keV from earlier values evaluated by using nuclear beta-decay data. The new measurements show the reduction of the N = 82 shell gap below the doubly magic 132Sn. The nucleosynthesis associated with the ejected wind from type-II supernovae as well as from compact object binary mergers is studied, by using state-of-the-art hydrodynamic simulations. We find a consistent and direct impact of the newly measured masses on the calculated abundances in the A = 128 - 132 region and a reduction of the uncertainties from the precision mass input data.Masses adjacent to the classical waiting-point nuclide Cd130 have been measured by using the Penning-trap spectrometer ISOLTRAP at ISOLDE/CERN. We find a significant deviation of over 400 keV from earlier values evaluated by using nuclear beta-decay data. The new measurements show the reduction of the N=82 shell gap below the doubly magic Sn132. The nucleosynthesis associated with the ejected wind from type-II supernovae as well as from compact object binary mergers is studied, by using state-of-the-art hydrodynamic simulations. We find a consistent and direct impact of the newly measured masses on the calculated abundances in the A=128–132 region and a reduction of the uncertainties from the precision mass input data.Masses adjacent to the classical waiting-point nuclide 130Cd have been measured by using the Penning- trap spectrometer ISOLTRAP at ISOLDE/CERN. We find a significant deviation of over 400 keV from earlier values evaluated by using nuclear beta-decay data. The new measurements show the reduction of the N = 82 shell gap below the doubly magic 132Sn. The nucleosynthesis associated with the ejected wind from type-II supernovae as well as from compact object binary mergers is studied, by using state-of-the-art hydrodynamic simulations. We find a consistent and direct impact of the newly measured masses on the calculated abundances in the A = 128 - 132 region and a reduction of the uncertainties from the precision mass input data.arXiv:1512.05676oai:cds.cern.ch:21170112015-12-17
spellingShingle Nuclear Physics - Experiment
Atanasov, D.
Ascher, P.
Blaum, K.
Cakirli, R.B.
Cocolios, T.E.
George, S.
Herfurth, F.
Kisler, D.
Janka, H.T.
Just, O.
Kowalska, M.
Kreim, S.
Kisler, D.
Litvinov, Yu. A.
Lunney, D.
Manea, V.
Neidherr, D.
Rosenbusch, M.
Schweikhard, L.
Welker, A.
Wienholtz, F.
Wolf, R. N.
Zuber, K.
Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process
title Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process
title_full Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process
title_fullStr Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process
title_full_unstemmed Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process
title_short Precision Mass Measurements of 129-131Cd and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process
title_sort precision mass measurements of 129-131cd and their impact on stellar nucleosynthesis via the rapid neutron capture process
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1103/PhysRevLett.115.232501
http://cds.cern.ch/record/2117011
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