New effective interaction for pf-shell nuclei and its implications for the stability of the N=Z=28 closed core -: art. no. 034335
New effective interaction for pf-shell nuclei and its implications for the stability of the N=Z=28 closed core -: art. no. 034335
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DOI：
10.1103/physrevc.69.034335
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发表时间：
2004-03-01
影响因子：
3.1
通讯作者：
Mizusaki, T
中科院分区：
文献类型：
--
作者：
Honma, M;Otsuka, T;Mizusaki, T
从结合能、电磁矩和跃迁、激发光谱等不同角度对全PF壳层模型计算中的有效相互作用GXPF1进行了详细的检验。成功地描述了N或Z=28个原子核、Mn-53、Fe-54、Co-55和Ni-56、Ni-57、Ni-58、Ni-59的半映象结构，这表明在低能级非激发态和高自旋激发态都存在显著的核激发。N=Z奇核Co-54和Cu-58的计算结果也证实了GXPF1相互作用在同位旋相关性质中的可靠性。形状共存的研究表明，在全空间计算仍然太大而不实用的情况下，蒙特卡洛壳模型比传统计算具有优势。
The effective interaction GXPF1 for shell-model calculations in the full pf shell is tested in detail from various viewpoints such as binding energies, electromagnetic moments and transitions, and excitation spectra. The semimagic structure is successfully described for N or Z=28 nuclei, Mn-53, Fe-54, Co-55, and Ni-56,Ni-57,Ni-58,Ni-59, suggesting the existence of significant core excitations in low-lying nonyrast states as well as in high spin yrast states. The results of N=Z odd-odd nuclei, Co-54 and Cu-58, also confirm the reliability of GXPF1 interaction in the isospin dependent properties. Studies of shape coexistence suggest an advantage of Monte Carlo shell model over conventional calculations in cases where full-space calculations still remain too large to be practical.