期刊
PHYSICAL REVIEW C
卷 89, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.89.021301
关键词
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资金
- NSF [PHY-1102511 (NSCL), PHY-10-64819 (FSU)]
- DOE [DENA0000979 (NNSA)]
- MEXT [20244022]
- HPCI [hp120284, hp130024]
- JSPS [258994]
- Grants-in-Aid for Scientific Research [13J08994, 23244049] Funding Source: KAKEN
The internal-conversion and internal-pair-production decays of the first excited 0(+) state in Ni-68 are studied following the beta decay of Co-68. A novel experimental technique, in which the ions of Co-68 were implanted into a planar germanium double-sided strip detector and which required digital pulse processing, is developed. The values for the energy of the first excited 0(+) state and the electric monopole transition strength from the first excited 0(+) state to the ground state in Ni-68 are determined to be 1605(3) keV and 7.6(4) x 10(-3), respectively. Comparisons of the experimental results to Monte Carlo shell-model calculations suggest the coexistence between a spherical ground state and an oblate first excited 0(+) state in Ni-68.
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