期刊
PHYSICAL REVIEW C
卷 85, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.85.064305
关键词
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资金
- European Community [EURONS RII3-CT-2004-506065]
- MICINN, Spain [FPA2011-29854]
- IN2P3, France [AIC-D-2011-648]
- Comunidad de Madrid, Spain [HEPHACOS S2009-ESP-1473]
- Generalitat Valenciana, Spain [PROME-TEO/2010/101]
- INFN, Italy [AIC-D-2011-0746]
The neutron-rich cobalt isotopes up to A = 67 have been studied through multinucleon transfer reactions by bombarding a U-238 target with a 460-MeV Zn-70 beam. Unambiguous identification of prompt gamma rays belonging to each nucleus has been achieved using coincidence relationships with the ions detected in a high-acceptance magnetic spectrometer. The new data are discussed in terms of the systematics of the cobalt isotopes and interpreted with large-scale shell-model calculations in the fpgd model space. In particular, very different shapes can be described in Co-67, at the edge of the island of inversion at N = 40, where a low-lying highly deformed band coexists with a spherical structure.
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