期刊
PHYSICAL REVIEW C
卷 83, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.83.011304
关键词
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资金
- NSFC [10875157, 10979066]
- MOST [2007CB815000]
- CAS [KJCX2-EW-N01, KJCX2-YW-N32]
- Supercomputing Center, CNIC of CAS
The recently observed high-spin rotational bands in odd-A nuclei Cm-247,Cm- 249 and Cf-249 [Tandel et al., Phys. Rev. C 82, 041301(R) (2010)] are investigated by using the cranked-shell model (CSM) with the pairing correlations treated by a particle-number conserving (PNC) method in which the blocking effects are taken into account exactly. The experimental moments of inertia and alignments and their variations with the rotational frequency omega are reproduced very well by the PNC-CSM calculations. By examining the omega dependence of the occupation probability of each cranked Nilsson orbital near the Fermi surface and the contributions of valence orbitals to the angular momentum alignment in each major shell, the level crossing and upbending mechanism in each nucleus is understood clearly.
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