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Properties of low-lying states in Co-65 from lifetime measurements

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Olaizola, B. and Fraile Prieto, Luis Mario and Mach, Henryk Andrzej and Nowacki, F. and Poves, A. and Aprahamian, A. and Briz, J. A. and Cal González, J. and Ghita, D. and Koster, U. and Kurcewicz, W. and Lesher, S. R. and Pauwels, D. and Picado, E. and Radulov, D. and Simpson, G. S. and Udías Moinelo, José Manuel (2019) Properties of low-lying states in Co-65 from lifetime measurements. Physical review C, 99 (2). ISSN 2469-9985

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Official URL: http://dx.doi.org/10.1103/PhysRevC.99.024321


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https://journals.aps.org/Publisher


Abstract

The low-energy structure of Co-65 was studied by means of gamma(-) and fast-timing spectroscopy at the ISOLDE/CERN facility. The known level scheme of Co-65 populated following the beta(-) decay of Fe-65 was expanded. The experimental results were compared with large-scale shell-model calculations. The measured long lifetime of the (1/2(1)(-)) level confirms its nature as a highly collective state with proton excitations across the Z = 28 gap and neutrons across the N = 40 subshell.


Item Type:Article
Additional Information:

©2019 American Physical Society. This work was partially supported by the Spanish MINECO through Projects No. FPA2014-57196 and No. FPA2015-65035-P and Centro de Excelencia Severo Ochoa Programme (Project No. SEV-2016-0597). Support by Grupo de Física Nuclear (GFN-UCM) and by the European Union Seventh Framework through ENSAR (Contract No. 262010) is also acknowledged. B.O. acknowledges funding by the CPAN project. S.R.L. acknowledges funding by the U.S. National Science Foundation under Contract No. PHY-0758100. The authors thank Dr. L. Toker for her invaluable help preparing the figures for this manuscript.

Uncontrolled Keywords:Neutron-rich nuclei
Subjects:Sciences > Physics > Nuclear physics
ID Code:55870
Deposited On:24 Jun 2019 09:42
Last Modified:08 Jul 2019 15:30

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