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Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes
The use of chemically selective laser ionization combined with beta-delayed neutron counting at CERN/ISOLDE has permitted identification and half-life measurements for 623-ms Mn-61 up through 14-ms Mn-69. The measured half-lives are found to be significantly longer near N=40 than the values calculat...
| Autores principales: | , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.82.1391 http://cds.cern.ch/record/375032 |
| _version_ | 1780893234280529920 |
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| author | Hannawald, M Kautzsch, T Wöhr, A Walters, W B Kratz, K L Fedosseev, V Mishin, V I Böhmer, W Pfeiffer, B Sebastian, V Jading, Y Köster, U Lettry, Jacques Ravn, H L |
| author_facet | Hannawald, M Kautzsch, T Wöhr, A Walters, W B Kratz, K L Fedosseev, V Mishin, V I Böhmer, W Pfeiffer, B Sebastian, V Jading, Y Köster, U Lettry, Jacques Ravn, H L |
| author_sort | Hannawald, M |
| collection | CERN |
| description | The use of chemically selective laser ionization combined with beta-delayed neutron counting at CERN/ISOLDE has permitted identification and half-life measurements for 623-ms Mn-61 up through 14-ms Mn-69. The measured half-lives are found to be significantly longer near N=40 than the values calculated with a QRPA shell model using ground-state deformations from the FRDM and ETFSI models. Gamma-ray singles and coincidence spectroscopy has been performed for Mn-64 and Mn-66 decays to levels of Fe-64 and Fe-66, revealing a significant drop in the energy of the first 2+ state in these nuclides that suggests an unanticipated increase in collectivity near N=40. |
| id | cern-375032 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1999 |
| record_format | invenio |
| spelling | cern-3750322019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.82.1391http://cds.cern.ch/record/375032engHannawald, MKautzsch, TWöhr, AWalters, W BKratz, K LFedosseev, VMishin, V IBöhmer, WPfeiffer, BSebastian, VJading, YKöster, ULettry, JacquesRavn, H LDecay of neutron-rich Mn nuclides and deformation of heavy Fe isotopesNuclear Physics - ExperimentThe use of chemically selective laser ionization combined with beta-delayed neutron counting at CERN/ISOLDE has permitted identification and half-life measurements for 623-ms Mn-61 up through 14-ms Mn-69. The measured half-lives are found to be significantly longer near N=40 than the values calculated with a QRPA shell model using ground-state deformations from the FRDM and ETFSI models. Gamma-ray singles and coincidence spectroscopy has been performed for Mn-64 and Mn-66 decays to levels of Fe-64 and Fe-66, revealing a significant drop in the energy of the first 2+ state in these nuclides that suggests an unanticipated increase in collectivity near N=40.nucl-ex/9812008oai:cds.cern.ch:3750321999 |
| spellingShingle | Nuclear Physics - Experiment Hannawald, M Kautzsch, T Wöhr, A Walters, W B Kratz, K L Fedosseev, V Mishin, V I Böhmer, W Pfeiffer, B Sebastian, V Jading, Y Köster, U Lettry, Jacques Ravn, H L Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes |
| title | Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes |
| title_full | Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes |
| title_fullStr | Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes |
| title_full_unstemmed | Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes |
| title_short | Decay of neutron-rich Mn nuclides and deformation of heavy Fe isotopes |
| title_sort | decay of neutron-rich mn nuclides and deformation of heavy fe isotopes |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1103/PhysRevLett.82.1391 http://cds.cern.ch/record/375032 |
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